1/2'' Plastic Inserts Pack Of 4 Plastic material Black color Made of high-quality plastic material for a long-lasting durability 1/2'' Plastic Inserts Pack Of 4 Plastic Inserts is traditional push-fit plumbing, tried and tested system. Robust and reliable, it has stood the test of time. These fittings feature a one step jointing process and a high-performance fitting, ensuring superb joint integrity. This plastic insert is suitable for use in most plumbing and heating installations including hot and cold water and underfloor heating applications. The system offers a high degree of reliability, achieved through a product design that has been tried and tested for many years. Features It provides a superb combination of fast fitting with a permanent, reliable fix. USed for all hot and cold water supply or heating applications, including underfloor heating. Not suitable for the transportation of gases.