Key Benefits OEM Compatibility: Serves as a genuine replacement part for the entire Lochinvar PF series

This component is the certified Nordyne replacement part for several legacy models

Designed to handle a maximum inlet pressure of 400 PSI

As a critical failure point in hydronic heating systems

The 381-354-580 is primarily engineered for CGi Series 1 boilers

Armstrong Fluid Technology 207937-343 Valve 326010-701 Key Benefits OEM Compatibility: ServesThe Armstrong Fluid Technology 207937 343 Valve is a high performance pressure water reducing valve engineered to maintain consistent downstream pressure in complex hydronic heating and plumbing systems. Built with a rugged brass body and featuring a 3 4" Female NPT connection, this Model RD 40 regulator is a critical component for protecting system fixtures from high pressure surges. It arrives with a precise 12 PSI factory setpoint, though it offers