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Lincat FilterFlow FC04 Replacement Water Boiler Filter Cartridge

SKU: FC04
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Price:
Sale price£58.50 Regular price£67.99
Quantity: Single
Price:
Sale price£58.50 Regular price£67.99
Free express delivery for all orders over £50

Free express delivery for all orders over £50

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FREE Express Delivery: Orders over £50 to UK mainland
Next Day Delivery: £5.99 (order before 3pm)
Standard Delivery: £2.99 for 2-3 working days
Guaranteed to Fit

Guaranteed to Fit

Perfect fit guaranteed on all recommended products – or you’ll get a full refund.

Unsure if it’s the right fit? Ring us on 0161 768 9566 or email us.

Description

The Lincat FilterFlow FC04 Replacement Water Boiler Filter Cartridge provides premium quality water filtration with every use. The FC04 combines high-quality carbon filtration and limescale inhibitor to protect water boilers from limescale damage and provide contaminant free water, ensuring optimum taste and flavour for tea and hot beverages.

The Lincat FilterFlow FC04 should be changed at a minimum every 6 months or once it has reached its capacity of 5,600 litres.

The Lincat FilterFlow FC04 is suitable for the Lincat FX series of water boilers. For older style (pre-September 2016) Lincat F series water boilers, please order filter AP2-C401-SG.

Product features

  • Ensures premium water quality and reduced limescale build-up
  • Simple, quarter-turn filter removal and installation
  • Protects water boilers from limescale damage, prolonging its life and reducing service call outs
  • WRAS approved
  • For use with CS570, CS571, CS572, CS573, CS574 & CS575 Lincat Water Boilers

Product specifications:

  • Capacity: 5,600 litres or 6 months, whichever comes first
  • Weight: 500g
  • Dimensions: 290mm x 58mm

Shipping

  • Orders ship within 1 business day (Mon–Fri, excl. holidays).
  • You’ll get an email as soon as your order is on its way.

Delivery Options

  • FREE Express Delivery on UK orders over £50
  • Next Day Delivery – £5.99 (order before 3pm)
  • Standard Delivery – just £2.99

Click here for international details.

Every filter we stock meets rigorous industry standards. We source exclusively from manufacturers holding WRAS, NSF, or WQA certifications — so whether you're replacing a fridge filter, fitting an undersink system, or upgrading your whole house, you're getting proven performance, not guesswork.

Different water problems need different solutions. Hard water, chlorine taste, sediment, microplastics — each requires specific filtration technology. That's why we don't just sell filters; we help you match the right system to your actual water quality concerns.

What we guarantee:

  • Certified quality — Every product meets recognised UK or international filtration standards
  • Genuine parts — Authentic filters from authorised supply chains, never grey-market imitations
  • Expert guidance — Our team knows filtration inside out and will steer you to what actually works
Filter Flair
OEM Brands
Other Online Sellers
Perfect Filter Guarantee
✅ Always fits or your money back
✅ Fits (official product)
❌ Risk of wrong/ incompatible filter
Delivery Speed
✅ Next-day tracked delivery available
❌Often slower, limited stock
❌Unpredictable shipping times from abroad.
Customer Service
✅ UK-based, 7-Day Specialist Support
❌ Outsourced India-based centres
❌ Unskilled AI chatbot support
Price and Value
✅ Lower price, same OEM reliability
❌ Sticker price with no savings
❌ Unskilled AI chatbot support
Credibility
✅ 900+ Verified 5-star reviews
✅Big brand reputation
❌ Mixed reviews with doubts on authenticity

Fit & Compatibility

How do I know if this filter fits my fridge?
Use our “Compatibility Check” on the website. Enter your fridge’s model number and we’ll show you the exact filter you need.

Where can I find my fridge’s model number?

Most fridge model numbers are on a label inside the fridge (usually behind the crisper drawer, on the side wall, or near the door frame). See our guide here. If you can’t find it, check your user manual.

What if the filter doesn’t fit?


You’re covered by our Perfect Fit Guarantee. If it doesn’t fit, we’ll replace it or refund you, no hassle.

Can I use a non-OEM filter in my fridge?

Yes, Certified Compatible Filters are engineered to meet or exceed OEM standards, while offering the same fit and filtration performance—at a better value.

Usage & Maintenance

How often should I replace my filter?

Every 6 months, or sooner if your water has a noticeable taste or odour.

How do I install the filter?

Each filter comes with step-by-step instructions. Most simply twist or click into place—no tools required.

What happens if I forget to replace it on time?


Old filters can clog, slowing water flow and letting impurities through. Regular replacement ensures fresh, clean water and ice.

How do I know when my filter needs changing?


Look out for:

  • Water tasting or smelling off
  • Slower water flow
  • Your fridge’s “change filter” light switching on

Performance & Safety

Do these filters remove chlorine, lead, and microplastics?


Yes, our filters reduce chlorine, lead, and other common contaminants, including microplastics, so your water tastes better and is safer to drink.

Is water in the UK safe to drink without a filter?


Tap water in the UK is safe and regulated. A filter isn’t required—but it improves taste, reduces micro-contaminants, and gives extra peace of mind.

What’s the difference between OEM filters and Filter Flair alternatives?


OEM = “Original Equipment Manufacturer.” Filter Flair alternative filters deliver the same quality, compatibility, and certifications, but at a fraction of the price.

Are your filters certified (WRAS, NSF, WQA)?


Yes, all Filter Flair filters are independently tested and certified to meet WRAS, NSF, and WQA standards.

Delivery & Subscription

How quickly will my filter be delivered?


Orders are processed within 1 business day. Express UK delivery arrives in 2–3 days, and Next-Day delivery is available if you order before 3pm. For more information visit our shipping policy page

How does Subscribe & Save work?


Pick your filter, and get it delivered every six months while saving up to 10%. 

Can I pause or cancel my subscription anytime?


Yes, you’re in control, you can pause, change, or cancel anytime from your account dashboard.

How does international shipping work?


We ship worldwide. Costs and delivery times vary depending on the destination—calculated at checkout. See more information on our shipping policy page 

Trust & Assurance

Why choose Filter Flair over others?

  • Perfect Fit Guarantee
  • Genuine OEM & Certified Filters
  • Fast UK delivery
  • Subscribe & Save discounts
  • Excellent UK-based support, 7 days a week

What is the ‘Perfect Fit Guarantee’?


If your filter doesn’t fit or perform as promised, we’ll replace it or refund you in full. No risk, no hassle.

What if I need help choosing the right filter?


Use our simple Compatibility Checker or get in touch and we’ll help you find the perfect match for your fridge.

How can I get in touch with Filter Flair?


Get in touch via the ‘Contact Us’ page on our website or email our UK support team at support@filterflair.co.uk. Alternatively, give us a call on +44 (0)161 768 9566 or contact our live chat here.

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Customer Reviews

Based on 4 reviews
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KHALID SHEIKH (Cardiff, GB)

Lincat FilterFlow FC04 Replacement Water Boiler Filter Cartridge

Hi Khalid,

Thank you for taking the time to leave a review for our Lincat FilterFlow FC04 Replacement Water Boiler Filter Cartridge. We are pleased to hear that it has met your expectations and has been a helpful product for you. We value your feedback and appreciate your support. Have a great day!

Best Regards,
Brian
Filter Flair UK

M
Martin Lumb (Dagenham, GB)
easy and quick

no problem navigating the web site. easy to order and timely delivery. will go back to these again. price was competitive, as a charity every penny counts.

Hi Martin,

Thank you for taking the time to leave us a review.

We're glad to hear that you found our website easy to navigate and had a smooth ordering process. We totally support charity works and we're grateful to have customers like you who also value every penny.

Thank you for choosing us and we look forward to serving you again in the future. Have a great day!

Best Regards,
Brian
Filter Flair UK

I
Iain Campbell (Cheadle, GB)
Great service.

New filter delivered within 48 hours.

Hi lain,

Thank you for your positive feedback! We are delighted to hear that you were pleased with our service and that your replacement filter arrived promptly.

We value your satisfaction and are always here to assist you with any future needs. Thank you for choosing our product.

Best Regards,
Brian
Filter Flair UK

L
Lee Hiscox (Haslemere, GB)
Great Service

Great service as always, items ordered were delivered quickly.

Free UK delivery over £50

Just £2.99 for anything less.

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