1.19years experience,high quality, competitive price. 2.type:Single&Double flared stainless steel sleeve. 2.3. ... of installing. 3. Perfect watertightness, Anti-rust, leak-proof water, good strength, long life . 4. Double o-ring seal, contributing greater ... ,such as for facilities of cold water, sanitary hot water, and heating ect. High quality stainless steel sleeve pipe fittings