MrPEX’s Composite Radiant Manifold is designed to withstand high temperatures and pressures. It exceeds oxygen diffusion standard DIN 4726 and is completely corrosion-resistant. The manifold comes partially assembled as a kit. The return valve cap can be removed to accommodate valve actuators. The branches have Eurokonus (EK20) connections, and all EK20 compression fitting assemblies can be used to connect tubing up to 5/8 inch. Single, two-loop, three-loop, and four-loop add-on manifold sections and other accessories are sold separately.