1.19years experience,high quality, competitive price. 2.type:Single&Double flared stainless steel sleeve. 2.3.Various size. ... -proof water, good strength, long life . 4. Double o-ring seal, contributing greater security. 5. Antielectrolysis ... ,14,16,18,20,25,32MM Double flared stainless steel sleeve Size DIA 12,14,16, ... hot water, and heating ect. High quality stainless steel sleeve pipe fittings