1" BSP T M x 1" BSP swivel female plus BSP/BSP T male/male adaptor end connection. Stainless steel unbraided flexible gas connector for the final connection to Gas-fired Radiant and Warm Air Heaters. Meets the requirements of BS 6896 Specification for installation and maintenance of gas-fired overhead radiant heaters for industrial and commercial heating (2nd and 3rd family gases), provided the pressure class of hose is appropriate for the particular installation.