Pentair 1-1/2" to 2" Valve Check | R172288 C8465 verify your existing cartridge measures

verify your existing cartridge measures approximately 19 5/16" in length and 9 15/16" in outer diameter

Hayward Micro-Clear and Pro-Grid DEX4800DA

H400FDP Manufacture Date Requirement For units manufactured after September 20

The Unicel C-7430 is a 7000 Series 110 sq

Pentair 1-1/2" to 2" Valve Check | R172288 C8465 verify your existing cartridge measuresSave your Pool Heater with the Pentair Rainbow #172288 check valve! A must for all pools with a heater and automatic chlorine feeder (Chlorinator). The Pentair Rainbow #172288 check valve with 1 2 lbs spring prevents chlorinated pool water from entering the heater. Features: Works will all in line chlorine feeders Heavy duty high quality item Corrosion resistant check valve Specs: Internal female 1. 5" slip by slip fitting or external male 2" slip Use