Midland Metal 18028 Plug, 1/4 in Compression, Brass

Plug, Connection Size 1: 1/4-in, Connection Type 1: Compression, Brass, 7/16-24 Thread, For Use With: Copper, Aluminum and Thermoplastic Tubing, 0.3-in L x 0.34-in W, 300 psi, -65 to 250 deg F