The Doby

Improve the taste and smell of your mains water and remove chemicals such as chlorine, PFAS, and sediments. If you are looking to reduce scale in your water please take a look at our mains hard water filters.

You have the option of selecting a Super 0.6 - 1 micron cartridge which also removes sub-micron micro plastics, bacteria, cysts, etc.

The Doby fits to your mains water supply so there's no need for a separate water filter tap.

The Doby is a whole house water filter system. When fitting allow for a minimum of 28" (72cm) height x 12" (30cm) width x 7" (18cm) depth.

Your kit will include:

• 1 x 4.5 x 20'' filter housing
• 1 x white housing bracket
• 1 x 5 micron or 1 micron activated carbon block cartridge (depending on selection).*
• Either 1/2 for 15mm or 3/4 for 22mm ports
• Isolating flexis (no need for extra ball valves)
• 1 x double check valve
• 1 x housing spanner
• Fitting instructions for your plumber. You can download the fitting instructions now by clicking on the link directly under the product image. 

Cartridge details:

• Watts WCBFF20 comes as standard (chlorine, taste, odour and sediment).
• Optional Watts/CMAX MAXCL-FF20 (extra chlorine / chemicals, taste odour, sediment reduction)*
• 4.5 x 20
• 5 micron / 1 micron
• >26,000 gallons @ 3.0gpm or 12 months; whichever comes first
• Certified NSF/ANSI standard 42 NSF
• Certified by ISO 9001
• Performance tested and verified by independent laboratory testing
• We sent replacement cartridge email reminders every 6 months.

Do you have to install a mains water filter under the sink?

No, you don't. You can install your mains water filter wherever the cold water supply enters your house. This could be a utility room, garage, or other location. 

* Watts components are sometimes replaced with other similar quality items due to supply chain issues. Brassware and other plumbing accessories are sourced from UK suppliers.