Push-Fit Fittings from John Guest require no tools for installation or removal, making them an excellent choice for one-time jobs. Plastic Twist & Lock Speedfit Fittings are lead-free and perfect for use with potable water.
The manufacturer requires the installation of Pipe Inserts with Push-Fit Fittings used on PEX tubing in hydronic heating systems. They recommend Pipe Inserts for PEX plumbing systems. Hot water can cause a gradual loosening of the fitting’s teeth that secure it to the tubing. Pipe Inserts, available at SupplyHouse.com in 1/2", 3/4", and 1” sizes, prevent this from happening and ensure that your John Guest fitting will remain leak-free.
