PHS-CN Electric Salt Water Pool Heater 57kW - 480 Volts Three-Phase - 55 Amps slide-curve_Straight These include the Competitor

These include the Competitor

It locks in place

and Olympic/Vogue

This is a Stenner QuickPro Pump Head #3 replacement with Versilon tube and rated for 25 psi

PHS-CN Electric Salt Water Pool Heater 57kW - 480 Volts Three-Phase - 55 Amps slide-curve_Straight These include the CompetitorThis is a Coates PHS CN Series Electric Salt Water Pool Heater with 57kW, 480 Volts, 55 Amps, Three Phase for commercial swimming pools. Designed for pools that use chlorine generators, the heaters feature Cupro Nickel tank and Titanium heating elements. The Cupro Nickel and Titanium offer increased corrosion resistance in pool and spa water. They have a maximum salt concentration of up to 3500 ppm. The PHS CN Series heaters have digital thermostat,