The 500109 is capable of producing 50 gallons per day and typically fits in a sink cabinet. The Watts's RO System is a 4 stage reverse osmosis system which contains three replacement water filter cartridges and one membrane. Below is a break down of each stage and the compatible replacement membrane and filter part numbers that can be found on our site.
The full system is also available for purchase. Please click here to purchase the Watts 500109 RO system.
STAGE 1 : FPMB5-978 STAGE 2 : WCBCS975 STAGE 3 : F110009 STAGE 4 : WCBCS975
STAGE 1 : FPMB5-978
STAGE 2 : WCBCS975
STAGE 3 : F110009
STAGE 4 : WCBCS975