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It is not compatible with current or revised WhisperFlo pump housings produced after November 1998
OEM Brand Product Name Part Number Notes Hot Springs Spas — 31489 Models dated after 1990
cloudy water conditions
Reemay® 2040 polyester media
Pentair Water Pressure Switch Boot | ThermalFlo HP Titanium & UltraTemp ETi | 473606Z Control Parts It is not compatible withThe Pentair Water Pressure Switch Boot (473606Z) is the OEM replacement boot for the water pressure switch on ThermalFlo HP Titanium heat pumps and UltraTemp ETi heaters. IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high voltage components without proper certification. This boot seals and
