MIDLAND INDUSTRIES 10477 Reducer, 5/16 in SAE 45 deg Male Flared x 1/4 in SAE 45 deg Female Flared, Brass
MIDLAND INDUSTRIES Reducer, Connection Size 1: 5/16 in, Connection Type 1: SAE 45 deg Male Flared, Connection Size 2: 1/4 in, Connection Type 2: SAE 45 deg Female Flared, Brass, 1/2-20 x 7/16-20 Thread