Pentair MasterTemp 125 Thermal Regulator (474989) leviton Pleatco PTL47W-P4 filter cartridge with

Pleatco PTL47W-P4 filter cartridge with FC-0315 and FC-0315-HB cross references

Useful when the original O-ring is worn or failing

or too worn to support reliable filtration

which means the printed interface lines up with the exact configuration your system was designed to use

Designed for compatible pump structural and sealing service

Pentair MasterTemp 125 Thermal Regulator (474989) leviton Pleatco PTL47W-P4 filter cartridge withKeeping pool equipment in dependable condition often comes down to the right replacement component; this MasterTemp 125 Thermal Regulator is built for that role. Because pool equipment operates under heat, pressure, water exposure, and repeated service cycles, choosing the correct replacement helps reduce callbacks. For MasterTemp 125 heater work, correct component selection helps protect heating performance, water side sealing, ignition reliability,