McElroy Socket Fusion Kits are perfect for installing fittings for pipe diameters from 16mm to 125mm. These tools are designed specifically to socket fuse all major brands of polypropylene pipe and fittings. These convenient kits for both heaters and socket adapters give you the components needed to efficiently complete your socket fusion job. McElroy Socket Tooling meets ISO 15874, DIN 16962 and DIN 8077 pipes and fittings specifications.