Do you offer free shipping?

Yes! Free standard shipping on all orders over $100 within the contiguous US.

How long does shipping take?

Most orders ship within 1–2 business days. Standard delivery takes 3–7 business days. You'll receive a tracking email once your order ships.

How often should I replace my water filter?

It depends on the filter type. Sediment filters: every 3–6 months. Carbon filters: every 6–12 months. RO membranes: every 2–3 years. Check your product manual for exact guidelines.

How do I know which filter fits my system?

Find the model number on your existing system (usually on a label) and use our search bar to find compatible filters. You can also contact us and we'll help you find the right fit.

What is your return policy?

We offer a 120-day money-back guarantee on all products. Items must be unused and in original packaging for a full refund.

Do your products come with a warranty?

Yes, all products include a manufacturer's warranty. The period varies by product (typically 1–5 years). Check the product page for specific details.

Where can I find installation instructions?

Installation guides are included with every product and available on each product page. You can also visit our Instructions page or help.afwfilters.com for videos and step-by-step guides.

Can I change or cancel my order?

Please contact us as soon as possible at support@afwfilters.com or 785-661-2241. We process orders quickly but will do our best to make changes before it ships.

Buy 20-Inch Big Blue Filter System for High Flow Homes

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20-inch Single Canister High Flow Catalytic Carbon Whole House Filter

MSRP:

Sale Price: $209.00 - $309.00

Standard Price:

Product Features Complete System Mounting BracketHousing with 1" In/OutHousing WrenchCatalytic Carbon filter Standard-flow System Designed for homes with 2-4 bathrooms 20" High Flow Filter 4.5"x20" diameter filters outperform...

CF1-4520-CC

MSRP:

Sale Price: $209.00 - $309.00

Standard Price:

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20-inch 2 Stage Sediment-Nitrate Whole House Filter

MSRP:

Sale Price: $429.00 - $629.00

Standard Price:

Experience unparalleled water purity with the 20-inch 2 Stage Sediment-Nitrate Whole House Filter, designed for homeowners who demand the best for their families and properties. This advanced filtration system effectively removes harmful elements from...

CF2-4520-SDNT

MSRP:

Sale Price: $429.00 - $629.00

Standard Price:

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20" Big Blue Systems

20-inch Single Canister High Flow Catalytic Carbon Whole House Filter

20-inch 2 Stage Sediment-Nitrate Whole House Filter