The popular method in China now is to use PPR pipes and hot melt connections. The latest product in Europe is the quick plugging system, which does not require hot melting or clamping with strong clamps. Pipes and fittings can be locked with one push, whether they are exposed or buried. \x0d\The quick plugging system was successfully developed by George Fischer (GF) in 2004 and is called iFIT. In recent years, other brands have successively released similar products, but there are big differences: \x0d\iFIT's locking patent is unique. In various tests, it has completely reached 100% safety, even under 70 kg of pressure. Blasting, and can be used in high temperature radiator applications, this test is certified. \x0d\Other brands that imitate also use plug-in connectors, but the quality cannot reach the level of iFIT. Therefore, they use "plug-in fittings can be recycled" as a promotional point. However, everyone knows that if there is a problem with the connector, it must be recycled. Can it still be used after coming down? \x0d\In the future, this connection method should gradually increase in China, because this method does not require much experience of the installation workers and saves more than 4 times the installation time.