Water Doctor 2.5 x 10 Replacement Filter Cartridges – PP / CTO / GAC / T33 / RO

Standard 2.5 x 10 replacement cartridges for RO and drinking water systems

These Water Doctor 2.5 x 10 Replacement Filter Cartridges are standard-size cartridges for compatible drinking water and reverse osmosis systems. Choose from PP, CTO, GAC, T33 and RO membrane options based on the stage you are replacing.

Best for

• Customers maintaining compatible 2.5 x 10 drinking water systems
• RO pre-filter and post-filter replacement
• Replacing sediment, carbon, polishing or RO stages
• Homes that want to keep replacement cartridges on hand

Available cartridges

• PP sediment cartridge
• CTO carbon block cartridge
• GAC granular activated carbon cartridge
• T33 inline taste polishing cartridge
• RO membrane cartridge

Before ordering

Please confirm your housing size and system compatibility before purchasing. These are standard 2.5 x 10 cartridges and are not the same as COMO tankless, GF3, ROS4A quick-twist or ROS4B cartridges.

Maintenance note

Replacement timing depends on water quality, usage and the cartridge type being replaced.