All the rough-and-tumble features of the 4-Valve Aluminum Manifold in a simple 2-valve combination. Because we know manifolds are your lifeline. The hilmor 2-Valve Aluminum Manifold is built to last with a forged aluminum body. It’s designed to be leakproof with replaceable stainless steel valve seats, SAE-style O-rings and a securely seated large sight glass. Front-mounted hose positions and a permanent location for temperature clamps result in added convenience. And it’s finished off with comfort-grip rubberized handles optimally sized for easy turns.