SIZE: Each hose measures 18 inches Rated for 80,000 BTUs per hour; maximum 250 PSI ACME (Type 1/QCC) nut x 1/4" inverted male flare SAFETY FEATURES include thermal protection in case of fire and excess flow protection in case of a broken gas line. Connect your Camper's 1/4" inverted flare inlet regulator to 5lb-40lb tanks