Pentair Water Pressure Switch | MasterTemp / Max-E-Therm / ETi Heaters | 42001-0060S Motors (with Clamp) W3EC40AC Position v5

(with Clamp) W3EC40AC Position v5 #40 Hayward Perflex Extended-Cycle DE Filter 27 Sq

Filter: If foam returns immediately after use

channelling filtered water from the laterals at the base of the sand bed up through the tank and out to the return line

and itchiness — so you can relax without the harsh side effects of chemical sanitizers

Simply use the hand pump to prime and water drains on its own

Pentair Water Pressure Switch | MasterTemp / Max-E-Therm / ETi Heaters | 42001-0060S Motors (with Clamp) W3EC40AC Position v5The Pentair Water Pressure Switch (42001 0060S) is the OEM replacement pressure switch for the MasterTemp, Max E Therm, and ETi series pool and spa heaters. This single component switch monitors water flow through the heater's water system and is a direct fit replacement for the original Pentair part. IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED Gas and electrical heater components must be serviced by a licensed pool professional or