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replace the gasket set at the same time to avoid a second service call
The Hayward Valve O-Ring (SX200Z4PAK2) is the OEM replacement O-ring for Hayward slide valves
inspect all associated gaskets and O-rings at the same time
Includes One Waterfall Unit
This cartridge is a coreless design and features orange end caps
Pentair MasterTemp & Sta-Rite Max-E-Therm Pool Heater Thermistor | 42001-0053S FS2003 replace the gasket set atThe Pentair Thermistor (42001 0053S) is the OEM replacement temperature sensing component for Pentair MasterTemp and Sta Rite Max E Therm pool heaters. IMPORTANT: HEATER COMPONENT PROFESSIONAL SERVICE 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. The thermistor monitors water or air
