The Pentair 42001-0060S is a Water Pressure Switch. It is compatible for use with the ETi 400 High Efficiency Heater. It is a genuine Pentair product.
Water Pressure Switch for ETi 400 High Efficiency Heater
Price: $114.66
BluEarth Cartridge, replaces 37 sq.ft. Rising Dragon
Price: $25.85
SPRING 1/2 X 1 1/2 EXTENSION
Price: $4.68
Jandy Pro Series Filter Basket, PHPF/PHPM, MHPM
Price: $44.69
Electrochlor Reducing Bushing
Price: $14.97
Ful Flo 3-Way Valve Ring
Price: Discontinued by Manufacturer
Waterking Tablet Chlorinator
Price: $136.86
Supaskimmer Face Plate Assembly
Price: $114.93