1. Item: stainless steel pipe for press fitting; 2. SS304,316; 3. Easy install; 4. ISO ... rubber O ring),-- Suit medium: cold water, hot water, compressed air, gas, oil etcSealing ring material:Option 1. CIIR(Chlorinated butyl ... consumption, not oil-resistant. Suitable for drinking water, tap water, hot and cold water, sanitary air and compressed gas. Option 2. EPDM ...