Pentair Pentek VIP Pro Series Control Boxes 1 HP Water Heaters The primary difference is that

The primary difference is that hard water minerals are replaced with potassium instead of sodium

Material PVC

Automatic thermostat keeps water at desired temperature

SANTOPRENE GASKET

Pentair Pentek VIP Pro Series Control Boxes 1 HP Water Heaters The primary difference is thatCapacitor start, capacitor run designed for the full range of single phase 1 2, 3 4, 1, 1 1 2, 2, 3 and 5 HP, 3 wire submersible motors. 330 Volt Made in the USA capacitors Pentek proprietary dielectric control panel board, UL and CSA Certified Control box rated for 50C (120F) ambient temperature Universal controls designed to work on all manufacturers 3 wire submersible motors Large wiring area offers generous space to make your wiring connections.