The Honeywell Integral Mains Install Valve is a high-quality all-in-one unit designed to control and protect the connection of a wide range of equipment to mains water pipe. The unit includes a type EC double check valve, adjustable pressure reducing valve and an isolation (shut off) valve. The unit also features an extra port to allow the option of installing a pressure gauge to provide accurate checking of the outlet pressure. HONEYWELL BG04M HONEYWELL INTEGRAL MAINS INSTALL VALVE. MAKE: HONEYWELL BG04M HONEYWELL INTEGRAL MAINS INSTALL VALVE WITH ACCESORIES DN15, PN16 Tmax: 40°C Pa: 1.5-6.0 BAR MADE IN GERMANY