What is a Temperature and Pressure Relief Valve? - t&p valve
DeringerBackflow
This is a double check detector assembly. Production began in 2014 on the models 30 & 30X while production on the 30G began in 2018. The model 30 & 30X come with grooved end integral butterfly shut offs while the 30G comes with OSY flanged end shut offs. The bypass is a type 2 design with a single check piped around the mainline second check.
Deringer20
6 IN SS Double Check Detector Backflow Preventer Assy, CFM/GPM Meter, Deringer, Integral Butterfly Valves, Grooved Ends, Dual-Action Checks
The Simplex Metered Commercial Water Softener (1.5 inch connections) is very economical when it comes to using salt and regeneration water.
8615510865705 
8615510865705