Features and Benefits: Used on 134A automotive systems; Temp range from -40 to 300 F; Resistant to oils, chemicals, ozone, oxygen, refrigerants; Shipping Weight: 2lbs; Manufactured by Mastercool; 270 pcs HNBR O ring kit for 134A automotive systems. HNBR is resistant to refrigerants, oils, chemicals, ozone and oxygen. Temp ranges from -40 to 300 F
eBay