Rapidrop Grooved couplings and fittings are used in the assembly of grooved piping systems. They are available in painted and galvanised finishes and are FM and UL approved. The Rapidrop type 300 end caps are pressure rated to 500psi and are use to cap pipework. The end cap has a threaded hole to allow for connection of threaded pipe or test and drain valves. They can be used in standard and thin walled pipes.