Brand Name: ATC *End 1 Diameter: 3/8 in. *End 1 Type: Compression *End 2 Diameter: 3/8 in. *End 2 Type: Compression in.*Material: Brass *Product Type: Nut *ANSI Certified: Yes *Maximum Temperature: 250 ~F *Maximum Pressure: 250 psi *Compatible Pipe Material: Brass, Copper, and Iron *Packaging Type: Bagged *Number in Package: 3 pk *Average Lead Content: Lead-Free *Discovery -  Express, Convenience,  Super,