The 1 BSP Flat Face Female Quick Release Coupling. Manufactured by DNP Italy, using only the highest quality materials, this coupling is built to last. Its flat face design ensures a leak-free connection and disconnection every time, and its compact size makes it easy to install in any application. Delta-P Ltd is proud to be the official UK distributor for DNP Italy, so you can be sure that you are getting the very best product and service.