See all products of Manual distribution manifolds in brass Pre-assembled distribution manifold. 1'' connections. Pre-assembled distribution manifold. 1'' and 11/4'' connections. Return manifold. 11/4'' connections. Flow manifold. 11/4'' connections. Pair of distribution manifolds. 11/4'' connections. Pair of steel mounting brackets for distribution manifolds 662 and 664 series. Pair of manifolds. Polymer mounting brackets with adjustable centre distance, for distribution manifolds 662 series. Pre-assembled distribution manifold. Pair of manifolds. Return end fitting. Flow end fitting.