I am looking for 2 - 4 transfill whips, preferably with heavy duty Sherwood G 5/8 thread ends and one bleeder valve. (Aside: Why do they sell transfill whips with two bleeder valves?) I have a local supplier of 5000 psi teflon core NPT-NPT hose, and could also just buy Sherwood G 5/8 thread ends and make my own whips.