At present, PPR Pipe is the most commonly used in home decoration, which has the advantages of environmental protection and health, high temperature resistance, pressure resistance, long service life, simple installation, and low price.
During the decoration, people often say that 4 is in charge and 6 is in charge. In fact, this refers to the outer diameter of the Pipe. The outer diameter of 4 is 20mm, and that of 6 is 25mm.
The marked "20*2.8, 25*4.2" on the water Pipe, the front 20 and 25 refer to the outer diameter of the Pipe, while the back 2.8 and 4.2 refer to the wall thickness of the water Pipe. Generally, the thicker the Pipe wall, the more durable the water Pipe.
Which Pipe to choose depends on the outer diameter of the household water Pipe. The household Pipe is in charge of 4 and only 4 is in charge. The household Pipe is 6 in charge, and you can use either 6 or 4 in charge.
The figure below is the size comparison table of PPR Pipes:
