Stingl Safety Vacuum Release System SR-500 pentair-minimax-75-and-100-heater-parts Sta-Rite 154689Z

Sta-Rite 154689Z

Hayward DEX6020BTC

To determine the proper time

Diffuser for the following Hayward Pumps:

3 ultra durable plastic steps

Stingl Safety Vacuum Release System SR-500 pentair-minimax-75-and-100-heater-parts Sta-Rite 154689ZStingl Safety Vacuum Release System SR 500 The Model SR 500 is a Safety Vacuum Release System (SVRS) which works by monitoring the vacuum on the suction side of the pool or spa pump. When a blockage occurs in the main drain or skimmer a sudden rise in vacuum will cause the SR 500 to shut down pump operation and activate an audible alarm (optional). The pump will remain off with the alarm sounding until manually reset. The Stingl SR 500 monitors vacuum