supply of air isolating cock , air isolating cock (1/4 bsp with both end female thread) in pneumatic line designed for pressurised flushing system make: spac product comply with iec61373, cat 2 & tested from nabl authorised lab [ warranty period: 30 months after the date of delivery ] ] , non return valve-3/4 designed for pressurised flushing system base material cf8/aisi 304 make: spac product comply with iec61373, cat 2 & tested from nabl authorised lab [ warranty period: 30 months after the date of delivery ] ] , muffler 1/4 (brass body) designed for pressurisedflushing system make:spac product comply withiec61373, cat 2 & tested f rom nabl authorised lab [ warranty period: 30 months after the date of delivery ] ] , preset air filter regulator 1/4 at 3 bar pressure with bracket, fasteners and pneumatic fittings designed for pressurised flushing system make: spac product comply with iec61373, cat 2 & tested from nabl authorised lab [ warranty period: 30 months after the d ate of delivery ] ]