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For Reverse Osmosis Cartridges please see dedicated pages:

Individual Small Filter Cartridges (2.5" x 10")

All these cartridges are for the industry standard 2.5" x 10" housings. (Scroll down for all other filter cartridges)

6th filter free with coupon code "6TH-FREE" at checkout, i.e. add 6 to basket and you will be only charged for 5 filters. Applies to 2.5"x10" filters only.

Specialist Small Filter Cartridges (2.5" x 10")

All these cartridges are for the industry standard 2.5" x 10" housings.

Individual Small Filter Cartridges (2.5" x 20")

All these cartridges are for the industry standard 2.5" x 20" housings.

Large Filter Cartridges (BB10)

All these cartridges are for the industry standard BB10 4.5" x 10" housings.

Large Filter Cartridges (BB20)

All these cartridges are for the industry standard BB20 4.5" x 20" housings.

    Scale Filter Cartridges and Solutions

    For Water Softener systems please see our dedicated page:

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