Hayward Check Valve, 3 in, Single, Inline True Union, PVC, Flange x Flange - TC1300FE limit3 and the mounting brackets are

and the mounting brackets are fabricated out of stainless steel that is 3/16 of an inch thick

and the edges are hemmed to prevent injuries

Bradley S83-131A Switch Tt 4 Sec

Fire rating: Underwriters Laboratories "B" label

Hayward Check Valve, 3 in, Single, Inline True Union, PVC, Flange x Flange - TC1300FE limit3 and the mounting brackets areDesigned to help prevent the reversal of flow in piping systems where backflow could cause damage to filters, pumps, or process equipment. This HAYWARD check valve operates without the need for any adjustments or settings, and features an innovative square cut elastomer seat to seal at low back pressures. The true union design eases valve removal from piping systems without having to break down the pipe connections.