Coupling 5/16 X 3/8 COMP X FIP ADPT AB1953

Coupling, Connection Size 1: 5/16 in, Connection Type 1: Compression, Connection Size 2: 3/8 in, Connection Type 2: FPT, Lead-Free Brass, 1/2-24 x 3/8-18 Thread, For Use With: Copper, Aluminum or Plastic Tubing, -40 to 250 deg F