Our most premium Underfloor Heating Manifold with temperature gauge isolation valves & pipe connectors – 2 to 12 Ports These premium underfloor heating manifolds are made with Brass Nickel and are manufactured to international standard ISO9001 to offer outstanding performance & reliability Brass Nickel manifolds come with: 1x flow manifold & 1x return manifold A Flow meter per port An Isolation valve per port Isolation ball valves Drain & fill points Automatic air vents Pre-fitted mounting bracket