Flexible thermoplastic UL and CGA approved hose. These hoses are rated up to 350 psig working pressure with a 400 pound pull test rating. Each hose comes with two ends and fully crimped brass ferrules. 1/4" Thermo pigtail. MER421-144: Fittings - 1"-20 Female Swivel x 1"-20 Male Swivel. 144" Hose.