Apollo 163K993H01 Bronze Relief Valve, 1/4" NPT connection, rated for 105 psi, is a compact safety device designed to vent excess pressure from hot-water heating systems and boilers. The bronze body provides durability and corrosion resistance in residential and commercial water systems, and the 1/4" NPT threading enables installation into standard piping and fixtures. The model number 163K993H01 identifies this particular Apollo Valves relief valve within a long-standing line of bronze safety-relief components.
