Heavy duty brass construction ensures long lasting across temperature while maintaining compatibility with standard flares fittings and copper tubing Designed for copper tubing installations in residential units, commercial refrigeration systems, and industrial machinery where resistant brass fittings ensures lasting Ideal for technicians, automotive mechanics, and craft enthusiasts working with refrigeration lines or hydraulic brake systems requiring reliability brass hardware components Featuring depth cut 45 degree flares fittings and precisions threads, these brass flares nut provide sealing for tubing connection in high pressure environments Ensuring secure, leakproof connection with these 5PCS Brass flares Caps, crafted from resistant brass for durability in refrigeration and plumbing systems, Manufacturer: uikios