Febco - LFFRK 856/876V ST-CK2 4 - Part of the RK-856ST/876VST Series ZC100F-6NH The standard setting is 50

The standard setting is 50 psi (345 bar)

Red Silicone Disc Elastomer Kit Type First Check Kit Lead Free Yes UPC - 098268131574

Installation is pretty straight forward

The quick closing action of the valve limits the possibility of damaging high inlet pressure from passing through the valve to downstream piping

Febco - LFFRK 856/876V ST-CK2 4 - Part of the RK-856ST/876VST Series ZC100F-6NH The standard setting is 50This check kit includes the parts necessary to repair or replace the second check module of a 4 inch double check detector valve assembly 856ST and 876VST. All parts are genuine and original to the valve. Features Factory replacement parts No special tools required for changing parts All parts are made of high quality materials Lead free Specifications Compatible Series or Model 856ST, 876VST Compatible Size Used On 4 IN Kit Type Check Kit Lead Free