These two types of manifolds are different in inner diameter and water flow.
The water distributor is a water distribution and collection device used to connect the supply and return water of various heating pipes in the water system. According to the incoming and outgoing water, it is divided into a water distributor and a water collector, so it is usually called a water distributor. device. One inch is an imperial unit, which is approximately equal to 2.54 centimeters. One-inch diameter manifolds are usually used in small pipe systems such as home heating.
One-inch-two manifold refers to the 1.2-inch (approximately 3.05 cm) interface size of the manifold. This size of manifold is usually used in larger piping systems, such as commercial heating. .