American Granby SS Constant Pressure Manifold 1.25" X 13.5"American Granby Stainless Steel Constant Pressure Manifold Description Multi port fitting designed to connect a tank to water system. Multi port feature allows one fitting to do the same job as 8 or more pipe fittings making a compact, neater and easier installation. As well less threaded connections mean less chance for leaks. American Granby SS constant pressure manifold use non corrosive 304 Stainless Steel. American Granby Stainless Steel Constant