Doby TMF Filter Cartridges

This is the replacement water filter cartridge set for our Doby TMF Filter. It consists of:

• One 20 x 4.5" carbon block filter cartridge for taste, odour, chlorine and sediments.
• Two 20" x 4.5" activated alumina cartridges for fluoride reduction which we pour into a cannister for you.

Cartridge details:

• Watts WCBFF20 coconut shell carbon block filter cartridge for chlorine, taste, odour and sediment reduction.
• 5 micron / 4.5 x 10"
• Outperforms GAC cartridges as it has superior chlorine reduction (up to 99%), lower pressure drop, will not channel and costs less than a GAC cartridge.
• Media wrap between centre tube and carbon block to reduce carbon fibres. 
• 100% coconut shell carbon.
• FDA grade components and materials.
• Recommended flow rate - 4gpm.
• Maximum operating pressure: 125 PSIG.
• Operating temperature: 10°C - 52°C / 50°F - 125°F.
• Chlorine reduction - >20,000 Gal @ 2 gpm.
• Tested and certified under NSF / ANSI standard 42 for materials only.

Cartridge details:

• Contains GAC/KDF filter media (GAC10N/KDF-BOM)
• 4.5" x 20"
• 10 micron
• 48,000 gallons @ 4.0gpm 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 send out an email every 6 months to remind you to check your filter performance.

   

  and 

• 1 x 4.5'' x 20" activated alumina fluoride removal filter cartridge
• 20 micron
• Temperature range 40°F (4°C) to 100°F (38°C)
• Pressure range 25 psi (1.7 bar) to 100 psi (6.9 bar)
• Capacity 10,000 mg/l
• Flow rate - 15 lpm / 3 gpm
• Reduction ability - 10ppm to <0.2ppm (93% reduction)

We send out an email every 6 months to remind you to check your filter performance.

Why do I need to change the o-ring?

You can tell if the seals start leaking, which is obvious, I know.

Even if there are no leaks you may find that the profile of the O ring becomes flattened because of prolonged time under compression. The cross section should be round and if it's not it may not seal easily.

However, I recommend that you replace the O rings every two or three years as a precautionary measure.

One of the main reasons for changing O rings periodically is that as they age and compress, the housing bowl needs to be tightened excessively. That leads to difficulty loosening the bowl from the cap next time the cartridge needs to be replaced.