Watts ET RA 300 Part of the ET RA Series inlet protection finder Z624 3NL G Z624 3NL G 2 Body Material Lead Free Copper Silicon Alloy Brand Watts Corrosion Resistant Coating No Disc Material Reinforced EPDM EAN 098268343823 Gauge Option No Gauge High Pressure Reduced Pressure Range Does Not Apply To Product High Pressure Reduced Pressure Setting Does Not Apply To Product Inlet Connection Size 1 1 2 IN Inlet Connection Type Union Press Inlet Thread Type Does Not Apply To Product Lead Free YES Maximum Operating Temperature Fahrenheit 180 Maximum Working Pressure BAR 27 Features ASME Section VIII code construction The excess water is contained in the heavy duty butyl replaceable bladder preventing tank corrosion and waterlogging problems