... 19years experience,high quality, competitive price. 2.type:Single&Double flared stainless steel sleeve. 2.3.Various ... leak-proof water, good strength, long life . 4. Double o-ring seal, contributing greater security. 5. Antielectrolysis ... Size DIA 12,14,16,18,20,25,32MM Double flared stainless steel sleeve Size DIA 12 ... ,14,16,18,20,25,32,40,50,63,75MM8 ...