2 Pack, 1/4" NPT, Female, P-Style, Plug, 3/8" Flow Size, Maximum Of 300 LB Per SQIN, Maximum Air Flow Of 68 Standard CUFT, Maximum Temperature Of 250 Degrees Fahrenheit, Made Of Hardened Steel & Are Plated To Resist Rust, Compatible With 1/4" x 3/8" T-Style.