3/4" x 3/4", lead free, female iron pipe x 24", stainless steel flexible water heater connector, sharkbite push fit fittings for use with copper tubing copper tube size, cpvc & pex, with integral tube liner included, constructed of brass, certified to 200 psi & 200 degrees Fahrenheit, design certified to ansi 1061/nsf61 standards, meets up, pica & cup requirements, fittings are listed with iapmo & are certified for use on potable & hydronic water distribution, certified for underground applications & as a manufactured joint without the need for access panel, lead free compliant to federal law 111-380.