Specification: metal: aluminum (also available in gunmetal stainless steel)size: 2 12" (63 mm) (also available in 1 12", 2" & 4")type of connection: french type (also available in instantaneous, storze, nakajima)hydrostatic testhydrostatic pressure for body: 21kg.f cm2finish: buff polishedguarantee: for the period of 12 months from the date of supply.