Rifeng heating manifolds provide high quality at affordable prices. Equipped with flow meters, shut-off valves, and temperature gauges, the manifolds may be ordered in configurations ranging from 2 to 12 loops. Manifold packages include loop fittings with the necessary EK20 thread to connect PEX or PEX-AL-PEX tubing to the loops. The shut-off valves connect to the manifold’s BSP supply threads and have standard NPT threads on the other side. Rifeng two-wire actuators can be ordered separately. Mr. PEX four-wire actuators also work with Rifeng manifolds.