The Hydronix SB-FPV-125 is a filter protection valve for the following:
The Hydronix SB-FPV-125 Water Filter Protection Valve protects many different kinds of water filtration devices. This filter protection valve provides water pressure reduction and reduces water hammer. This Shok Blok water hammer arrestor has a 125 PSI specification and has an acetyl body with quick connect fittings for 1/4" OD tubing.
Hydronix SB-FPV-125 Water Filter Protection Valve specifications: