Browse categories of Geothermal manifold Preassembled geothermal manifold Geothermal modular manifold Shut-off and balancing valves for geothermal manifold Accessories for geothermal manifold CALEFFI GEO® series manifolds are used to control and distribute the medium in closed circuit geothermal systems. Preassembled geothermal manifold Preassembled geothermal manifold. Geothermal modular manifold Modular manifold single module in polymer. Stainless steel tie-rods for assembling modular manifolds. Pair of stainless steel brackets to secure modular manifolds. Assembly kit for modular manifolds. Expand Shut-off and balancing valves for geothermal manifold Balancing valve with flow meter. Accessories for geothermal manifold Insulation for balancing valves. Ball valve complete with fitting for polyethylene pipe. Union.