45° SAE Refrigeration And Gas The Flaretite Seal Is A Metal Stamping, Designed With Multiple, Concentric Sealing Rings. The Entire Seal Is Coated With A Dry-To-The Touch, Baked-On Loctite Sealant. When Inserted Into A Fitting, The Concentric Rings Form Multiple Seals Down The Face Of The Fitting Flare. Copper Seal With Standard Loctite Vibra Seal Coating For Common Aluminum And Brass Fittings. Rated For -40 to 300degs F Temperature And All Common Gases & Fluids. Available In Jic (Us Standard), 37 Degree Flare, For Inch Tubing Sizes. Also Available In SAE (Us Standard), 45 Degree Flare, For Inch Tubing Sizes.