Pentair MasterTemp & Sta-Rite Max-E-Therm Pool Heater Thermistor | 42001-0053S Pool Cleaner Parts Sand Filters: add 3 ounces

Sand Filters: add 3 ounces (by weight) at a time

Weight range 20-30 lbs

2" NPT threads

confirm the voltage configuration of your heater installation — 120V and 240V supply configurations use different wiring arrangements

Pentair Max-E-Therm 333 Natural Gas 333NA For heaters manufactured after 11/16/13 (New 9-Bolt Lid Tub Design)

Pentair MasterTemp & Sta-Rite Max-E-Therm Pool Heater Thermistor | 42001-0053S Pool Cleaner Parts Sand Filters: add 3 ouncesThe 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