Brass and Stainless Steel Manifold Underfloor Heating Manifold 3b – 4b – 5b – 6b – 7b – 8b – 9b – 10b – 11b – 12b Stainless Steel Manifold 1″ and 1/1/4″ 3b – 4b – 5b – 6b – 7b – 8b – 9b – 10 b -11b -12b – 13b Brass complete Manifold 1″ 5b Brass complete Manifold 1″ 4b Brass Complete Manifold 1″ 3b Brackets Manifold 1″ Brass complete Manifold 1/1/4″ 5b Brass complete Manifold 1/1/4″ 4b Brass Complete Manifold 1/1/4″ 3b