3/8 I.D. x 3/4 O.D. Reusable Hose Repair Air Splice - Kimball Midwest
Stanley Bostitch Bostitch ProzHoze Air Hose Repair Kit 2 pc. For 3/8 prohoze 3/8 in. | Celebration Hardware
Amazon.com: WHK 12 PACK Air Hose Repair Kit Fittings 3/8 Barb to 1/4 NPT Air Hose Barb Connectors with Sealant Air Line Coupler, Brass Pipe Fittings Male Threaded with 12 Pcs Hose