3/8" MNPT Reusable Hose End Fittings | Milton Industries — Milton® Industries Inc.
3/8" MNPT HIGHFLOWPRO® V-Style Male Coupler — Milton® Industries Inc.
Milton 5 In ONE™ Universal Safety Exhaust Quick-Connect Industrial Coupler, 1/4-in Body 3/8-in MNPT BX 5 in the Air Compressor Fittings department at Lowes.com
Re-usable Brass Hose Fitting Male End 11/16 OD 3/8 ID 1/4 NPT | Milton Indust
Milton 718 3/8" FNPT M Style Coupler - Automotive Air Conditioning Hose Fitting Products - Amazon.com
1/4 Inch Industrial Milton Female 3/8 Inch Npt Air Coupler | 1/4" Air Couplers | Air Couplers | Air Hose & Accessories | Shop Supplies and Safety | Wurth USA
Milton® S620-6 - 3/8" Air Hose Repair Kit - TOOLSiD.com