Do you crimp your own hoses? Its so easy!! - YouTube
Brass Ferrule for Air and Water Hose 7332 3/8" ID/.781 ID/1.000 L/.625 P 10-Pack | eBay
Milton 1654-9 1 x .750 ID Brass Ferrule, 3/4" od | JB Tools
Amazon.com: SUNGATOR 12-Pack Air Hose Fittings, 3/8" Barb to 1/4" NPT Air Hose Repair Kit with Sealant, 3/8" Barb to 1/4" NPT Air Hose Barb Fitting, Brass Barbed Air Hose Repair Connector
Hose Ferrule Crimper for Crimping 1/4" to 3/8" Braided Hose Compressed Air Lines | eBay