Tanair TANHF25-4 | 1/2" BSP High Efficiency Filter Assembly 25 CFM Post Filter (0.01 micron)

Tanair TANHF25-4 | 1/2" BSP High Efficiency Filter Assembly 25 CFM Post Filter (0.01 micron) delivers 0.01 micron compressed air filtration with a 25 CFM capacity, helping remove contaminants and protect downstream equipment.

TANHF25-4 Filter
£104.00 ex VAT£124.80 inc VAT
SKU: TANHF25-4
Availability
In stock
Available for immediate dispatch
Delivery normally takes 2–3 working days.
Stock location:
Availability last updated 15 July 2026
  • ✔In Stock for Fast Dispatch
  • ✔UK Delivery Available
  • ✔Technical Support Available
  • ✔Finance Options Available
  • FSN Group warranty update (March 2026): 12-month warranty applies to screw compressors when purchased online via an authorised reseller.

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Trusted Performance, Recommended by Tanair

Tanair TANHF25-4 | 1/2″ BSP High Efficiency Filter Assembly 25 CFM Post Filter (0.01 micron)

The Tanair TANHF25-4 | 1/2″ BSP High Efficiency Filter Assembly 25 CFM Post Filter (0.01 micron) is a professional compressed air filter assembly engineered to remove contaminants, moisture, oil aerosols and particulate matter from compressed air systems. Designed for industrial reliability, this filter helps protect downstream equipment, improve air quality and reduce maintenance costs.

Featuring a 1/2″ BSP connection, 25 CFM flow capacity and 0.01 micron filtration performance, this post filter is ideal for compressor installations, air treatment packages, manufacturing facilities and compressed air distribution networks.

Key Features & Benefits

  • 25 CFM flow capacity.
  • 0.01 micron filtration efficiency.
  • Post Filter configuration.
  • Helps protect downstream equipment.
  • Improves compressed air quality.
  • Suitable for industrial compressed air systems.
  • Durable housing for long service life.

In-Stock Items

If a product is shown as In stock, it is available for immediate dispatch, subject to successful payment and order processing.

Stock may be held at one of our UK distribution centres or supplied directly from a manufacturer or distributor. In stock does not necessarily mean the item is available for collection from our Birmingham trade counter. Please wait for confirmation of the collection location before travelling.

Standard delivery normally arrives within 2–3 working days from dispatch. Where available, you may also select:

  • Priority Delivery — Arrives the Next Working Day from Dispatch
  • Free Standard Delivery — Arrives 2–3 Working Days from Dispatch

Orders placed before 2:00pm on a working day may be processed the same day, although this cannot be guaranteed during busy periods.

Available-to-Order and Back-Ordered Items

Products shown as Available to order, On back-order or Out of stock are not available for immediate dispatch.

Where we have received an expected dispatch date from the supplier, this will be displayed on the product page. Where a confirmed date is unavailable, an estimated lead time may be shown based on the product brand and our latest stock information.

Delivery times begin after the item has been dispatched. For example, an item with an expected dispatch date of 21 August would normally arrive 2–3 working days after that date when Standard Delivery is selected.

All expected dispatch dates and lead times are estimates and may change due to supplier availability, manufacturing delays, customs clearance, stock allocation, port delays, courier disruption or other circumstances outside our control.

Stock Location

We use distribution centres throughout the UK, and some products are dispatched directly by the manufacturer or supplier. The product page may provide general stock-location guidance based on the product brand or supplier group.

Please contact us if you need to confirm the exact dispatch or collection location. Products must not be assumed to be available at our Birmingham trade counter until collection has been confirmed by our team.

Checking Delivery Costs

A delivery calculator is available on eligible product pages. Enter your delivery postcode to view the available delivery methods and costs before adding the item to your basket.

The final delivery charge will also be displayed in your basket and at checkout. Delivery charges depend on the product, delivery location, shipping class and selected service.

Free Standard Delivery

Free Standard Delivery is available on qualifying website orders with a basket value of £250 or more for delivery to eligible UK mainland addresses.

Promotional delivery offers may also apply to selected products or brands. Any qualifying promotional option will be shown separately at checkout.

Free-delivery promotions apply only where their stated conditions have been met and may not apply to quotations, pro forma invoices, telephone orders, marketplace orders or deliveries outside the qualifying area.

Multiple Items and Separate Deliveries

Orders containing multiple products may be dispatched from different warehouses or suppliers. This means your order may arrive in more than one delivery and may be handled by different couriers.

You will receive dispatch information as each part of your order is sent. Separate deliveries do not necessarily mean that any items are missing.

Trade Counter Collection

Collection is available from our trade counter at:

Compressed Air Systems UK
15 Fortnum Close
Kitts Green
Birmingham
B33 0LG

Please wait until we have confirmed that your order is ready and available at Birmingham before travelling. Some products are held at alternative UK distribution centres or supplied directly by the manufacturer and cannot be collected from our Birmingham trade counter.

Our normal opening hours are:

  • Monday–Friday: 8:00am–4:30pm
  • Weekends and bank holidays: Closed

Deliveries Outside Standard UK Mainland Areas

Additional delivery charges and longer transit times may apply to:

  • The Scottish Highlands and Islands
  • The Isle of Wight
  • The Isle of Man
  • Northern Ireland
  • The Channel Islands
  • Other offshore or remote postcode areas

The correct delivery charge will be displayed at checkout where the destination is supported. Please contact us before ordering if you are unsure whether additional carriage will apply.

Delivery Addresses and Instructions

Orders can be delivered to residential, commercial and operational sites, including factories, hospitals, airports, prisons and public-sector premises, subject to courier access and any site-specific restrictions.

Please provide complete delivery information at checkout, including the business or site name, contact telephone number, access restrictions and any relevant booking-in requirements.

Where you ask a courier to leave goods unattended or in a nominated safe place, this is done at your risk. Compressed Air Systems UK cannot accept liability for loss or theft after delivery has been completed in accordance with your instructions.

Courier Deliveries

Most orders are delivered by courier. Tracking information will be provided where available once the order has been dispatched.

Deliveries normally take place between 7:00am and 5:00pm on working days, although exact times cannot usually be guaranteed. A signature may be required.

If no one is available to accept the delivery, the courier may leave instructions explaining how to rearrange delivery or collect the parcel. Additional charges may apply where repeated delivery attempts are required.

Bank Holidays and Seasonal Delays

Couriers do not normally deliver on UK bank holidays. Orders placed around bank holidays, Christmas, New Year or other peak periods may take longer to process and deliver.

Please allow additional working days during these periods. Any expected dispatch date shown on the product page remains an estimate and may be affected by seasonal supplier and courier delays.

Urgent Orders

If your requirement is urgent, please contact us before ordering so we can check current availability, confirm the stock location and advise whether an expedited delivery service is suitable.

Call 0121 753 3330 or email [email protected].

Warranty & Product Support

Compressed Air Systems UK and Tanair Compressors are committed to supplying dependable products and providing clear, practical support if a problem arises.

Many products are supplied with a 12-month manufacturer’s warranty, although the exact warranty period, scope and conditions vary depending on the product, brand and manufacturer.

Please refer to the product description, quotation, order documentation or manufacturer’s literature for the warranty that applies to your purchase. If the warranty period is important to your buying decision, please contact us before ordering and we will confirm the applicable cover where possible.

What the Warranty Usually Covers

Manufacturer warranties normally cover faults caused by defects in materials or workmanship during normal use and within the stated warranty period.

Where a valid warranty fault is confirmed, the remedy may include:

  • Technical guidance or troubleshooting
  • Repair of the affected product or component
  • Replacement of a faulty component
  • Replacement of the product where repair is not appropriate
  • Referral to the manufacturer or authorised service agent

The appropriate remedy will depend on the nature of the fault and the applicable manufacturer’s warranty terms.

Information We May Need

To assess a possible warranty claim, please provide as much of the following information as possible:

  • Your order number, invoice number or proof of purchase
  • The product name and SKU
  • The model and serial number
  • A clear description of the fault
  • When the issue first occurred
  • Photographs or video showing the problem
  • Details of the installation and operating conditions
  • Service and maintenance records where applicable
  • Details of any troubleshooting already carried out

Providing complete information can help us identify the issue more quickly and avoid unnecessary delays.

Warranty Exclusions

Warranty cover does not normally apply where a fault or failure has been caused by:

  • Incorrect installation, wiring or commissioning
  • Use outside the manufacturer’s stated operating limits
  • Misuse, neglect, overloading or accidental damage
  • Inadequate ventilation or unsuitable environmental conditions
  • Water, dirt, dust, corrosion, contamination or moisture ingress
  • Failure to carry out routine servicing or maintenance
  • Use of incorrect lubricants, filters, parts or consumables
  • Normal wear and tear
  • Unauthorised repair, alteration or dismantling
  • Damage caused during transportation after delivery
  • Use of the product for an unsuitable application

Service Parts and Consumables

Routine service items and consumable parts are not usually covered by warranty unless they are shown to have been defective at the time of supply.

Examples may include:

  • Filters
  • Belts
  • Lubricants
  • Seals
  • Drain components
  • Wear parts
  • Routine service kits

Inspection and Return of Goods

Products must not be returned without prior authorisation from our team.

We may ask for photographs, video, test results or further information before arranging an inspection or return. Where a product needs to be returned, we will provide the appropriate instructions.

If inspection confirms that the issue is not covered by warranty, charges may apply for inspection, collection, delivery, labour, parts or return carriage.

Installation and Servicing

Some products must be installed, commissioned and maintained by a suitably competent person. Failure to follow the manufacturer’s installation, servicing or maintenance requirements may invalidate the warranty.

Where service records are required as part of the manufacturer’s warranty conditions, these should be retained for the full warranty period.

Labour, Travel and Consequential Costs

Unless expressly stated otherwise, manufacturer warranty cover may be limited to the repair or replacement of the faulty product or component.

Costs such as labour, site attendance, travel, collection, reinstallation, loss of production, downtime or other consequential losses may not be included.

FSN Group Screw Compressor Warranty

As of March 2026, screw compressors supplied under FSN Group-associated brands and purchased online through an authorised reseller are generally supplied with a 12-month warranty.

This applies to screw compressors only and does not automatically apply to every product within the associated brands.

How to Contact Us

If you believe your product has developed a fault, please contact us as soon as possible.

Contact our support team
Call: 0121 753 3330
Email: [email protected]

We will review the information provided and explain the next steps clearly and fairly.

Nothing in this warranty information affects your statutory rights.

Service Parts, Lubricants & Technical Support

We can assist with service kits, replacement components, high-quality lubricants and other spare parts for the product shown above.

To help us identify the correct part as quickly as possible, please include the product SKU, model number or serial number when contacting us. Photographs of the existing component can also be helpful where identification is uncertain.

Our experienced team can provide guidance on suitable parts, routine servicing requirements and product compatibility.

Contact our team for assistance, or call 0121 753 3330.

Please note that replacement parts should be selected and fitted by a suitably competent person. Incorrect parts or installation may affect product performance, safety and warranty coverage.

About Compressed Air Systems UK

Compressed Air Systems UK has been supporting customers with compressed air equipment, parts and services since 1992.

With more than 30 years of industry experience, we provide practical, knowledgeable support to businesses across the UK, helping customers select, maintain and improve their compressed air systems.

Our Products

We supply a wide range of compressed air equipment, including:

  • Rotary screw compressors
  • Piston compressors
  • Portable compressors
  • Air receivers
  • Refrigerated air dryers
  • Filtration and condensate equipment
  • Pipework systems
  • Service kits, lubricants and replacement parts
  • Air tools, hoses and compressed air accessories

Our Tanair range includes energy-efficient compressed air solutions designed to provide dependable performance, straightforward support and excellent value.

Installation, Service & Support

In addition to equipment supply, our services include:

  • Compressed air system installations
  • Aluminium and galvanised pipework installations
  • Routine servicing and planned maintenance
  • Emergency breakdown assistance
  • Fault finding and repairs
  • Air leak detection and energy audits
  • Pressure Systems Safety Regulations support
  • Technical advice and system selection

We work with industrial, commercial and public-sector customers, including manufacturing facilities, hospitals, prisons, emergency services, shopping centres and specialist engineering sites.

Why Choose Us?

  • Trading since 1992
  • Nationwide UK support
  • Experienced compressed air specialists
  • 24/7 emergency breakdown assistance
  • Trade counter collection available in Birmingham
  • Wide product and spare-parts range
  • Practical technical support before and after purchase

Find Out More

Download our introduction brochure to learn more about our products, services and capabilities.

View the Compressed Air Systems UK Introduction Brochure

For further assistance, please contact our team or call 0121 753 3330.

Trusted by customers across the UK

Customers choose Compressed Air Systems UK and Tanair Compressors for dependable products, honest advice and responsive support.


Trading since 1992


More than 30 years of compressed air experience.

UK-based support


Real assistance from our experienced team.

Verified Google feedback


Independent reviews from genuine customers.

bryan wright profile picture
bryan wright
8 months ago
I have used Compressed Air Systems a number of times for repairs, servicing and also to purchase air compressors. The service I have received has been fantastic, friendly, helpful and very well priced. This company definitely offers convenience, value & quality. I massive thank you to all the team at Compressed Air Systems.
Response from the owner
8 months ago
Hi Bryan,Thank you so much for taking the time to review our company. We greatly appreciate your thoughtful comments and are thrilled to hear that you are satisfied with our services. It’s been a pleasure working with you, and we value the positive relationship we've built.We look forward to discussing any future opportunities or addressing any needs you might have. Please feel free to reach out whenever you’d like.Kind regards, TEAM CAS
Jordan Hay profile picture
Jordan Hay
9 months ago
I had an excellent experience with Compressed Air Systems! Their team was knowledgeable, friendly, and quick to respond. They helped me find the right compressor for my shop and even walked me through the installation process. Everything has been running flawlessly since day one. Highly recommend them for anyone needing reliable air solutions and professional service!
Response from the owner
9 months ago
Hello Jordan,Thank you for taking the time to share your feedback about the service you received. We are absolutely thrilled to hear that you’re satisfied with your experience! Your satisfaction means a lot to us. We look forward to speaking with you soon!Best wishes, Team CAS
Sam Cain profile picture
Sam Cain
1 year ago
Exceptional service! The team went above and beyond to help fix our machine and get us back up and running in no time. Their expertise, dedication, and quick thinking made all the difference. Highly recommend!
Response from the owner
1 year ago
Hi Sam, Thank you for taking time to review our company. I'm so glad we were able to help! Kind regards Team CAS
Richard Vinten profile picture
Richard Vinten
2 years ago
I can't recommend CAS UK enough.
We had a Clarke for a couple of years that we abused running it 12 hours a day. We found CAS UK when it needed a repair, and we were very impressed with how quickly they responded and came out to repair and service the machine.

Our business started to expand and we needed a large compressor with a proper airlines feeding our machines and work stations. The guys from CAS supplied the new compressor and worked flat out getting the machine and pipe working in.
They're a brilliant group of lads with a great work ethic and really easy to communicate with.

We'll 100% continue to use and recommend them.
Photo from customer review
Response from the owner
2 years ago
Hi Richard, thank you for taking the time to review our company and the service you received. It’s thrilling to read such positive feedback. We look forward to working with you again soon. Team CAS
Mike H N Fisher profile picture
Mike H N Fisher
2 years ago
Excellent firm to deal with.
Very efficient at every level.
Quite a rare find ~ don't waste the opportunity if you have a need within their expertise. Mike Fisher
Response from the owner
2 years ago
Thank you for your kind words Mike it’s been a pleasure to partner with you. We look forward to speaking to you soon. Kind regards Team CAS
LJD Tyres profile picture
LJD Tyres
2 years ago
Turned up this morning, no appointment or nothing, had what i needed in stock and had it fitted in less than 30 mins! sorted me right out getting me back on the road changing tyres! thanks once again cant recommend you enough! see you when i next need you
Response from the owner
2 years ago
Thank you for your kind review, it was a pleasure to assist you today. We look forward to seeing you again soon! Team CAS
James Deeming profile picture
James Deeming
2 years ago
Can't thank this company enough for getting me back on the road today. From the initial phone call, trying to explain the problem not having a clue what part is called what, the girl who answered knew exactly what I needed. To then arriving 30 minutes later and 2 engineers came out to my van and fixed the problem in minutes. Absolutely brilliant service. Thankyou!!!
Response from the owner
2 years ago
Hi James, thank you for visiting us today. It was a pleasure to assist you. We look forward to seeing you again soon. Team CAS
Sheikh Mudassar profile picture
Sheikh Mudassar
3 years ago
Response from the owner
3 years ago
Thank you for your review. Have a great day! Kind regards Team CAS
Very professional help me out this morning immediately to get me back on the road supplied fittings and new compressor 🙏🙏🙏🙏🙏💪💪💪
Response from the owner
3 years ago
Hi Paul, thank you so much for taking the time to review the service you received. We really appreciate your kind words and glad we could help this morning. You’re welcome back anytime! Kind regards Team CAS
Harry Draper profile picture
Harry Draper
4 years ago
Brilliant service
Used them for years!
Thank you

H D
Response from the owner
4 years ago
Hi Harry, thank you so much for taking the time to review our company. We really appreciate your business and look forward to dealing with you again soon. Kind regards TEAM CAS
Lewwwyy profile picture
Lewwwyy
4 years ago
Response from the owner
4 years ago
Thank you for your kind and honest review. Team CAS
Les Owen profile picture
Les Owen
4 years ago
Took in what I believed to be a beyond repair compressor. Received back, an as new machine, all physical damage repaired and connector fittings renewed to latest standard.
Compressor delivered to my premises in what was a great service by Compressed Air Systems UK. Thanks for a great experience
Jordan Li profile picture
Jordan Li
4 years ago
I have used CAS for 15 years.

Never let me down!
Always been brilliant & came out the same day if there is ever an issue.

Thank you
Jordan
Aaron Courtney profile picture
Aaron Courtney
5 years ago
Me and my company have been using compressed air systems for around 10 years!
Very professional always great advisor for the best machine for what we need, friendly office staff and most of all the knowledge from them is second to none.
Would recommend to anyone that needs advise or want to buy the right machine for them.
Plus the backup you get is the best.
Amelia Blackwell profile picture
Amelia Blackwell
8 years ago
What a refreshing team to have as competent suppliers for our leads and compressed air; not once have they given us poor service. They've saved our business; A Gilligan (Coatings) Ltd thousands of pounds per year with new high tech and efficient equipment. Their advice and service supplied over the last 15 year period has been extremely valuable, we would never consider another company for our compressed air services
2WheelsOnly LTD profile picture
2WheelsOnly LTD
8 years ago
Had a new compressor fitted a few months ago. Perfect service and amazing aftercare.
I was advised well and even advised towards a better value option saving us a chunk of money. Top quality honest service all round...... Thanks again.
Weight 1 kg
£104.00 ex VAT£124.80 inc VAT
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Industries We Support

Energy, Process & Heavy Industry
Food & Beverage
Automotive & Transport
Manufacturing & Engineering
And many more — talk to us for help sizing the right solution for your application.

Support & Aftercare

12 Month WarrantyFull peace of mind guaranteed on all workshop compressors.
UK installation availableProfessional on-site setup by our experienced technicians.
Full Aftermarket SupportComprehensive spares and repairs always ready to go.
UK Based SupportLocal experts just a phone call away for any assistance.
Genuine Service PartsOnly original, high-quality service parts for your machine.
Expert Air AdviceLeverage our 30+ years of technical compressed air knowledge.
TANHF25-4 FilterTanair TANHF25-4 | 1/2″ BSP High Efficiency Filter Assembly 25 CFM Post Filter (0.01 micron)
£104.00 exc vat.
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