Husky 1/4 in. IM Swivel Plug - 3/8 in. NPT (M) (2-Pack) HDA22200 - The Home Depot
WYNNsky Rubber Lead-in Air Hose, 3/8" X 30" (1/4 in. MNPT Ball Swivel x 1/4 in. FNPT Ends), 300 PSI, Red Heavy Duty Air Compressor Lead- in Hose - Amazon.com
Rapid Air F0244 3/8" Push On Hose Fitting X 1/2" Female Swivel Npt
Amazon.com: 3/8 NPT Pressure Washer Swivel Fitting, Anti Twist 3/8 Male to Female Stainless Steel Connector Joint, 360 Degree Kink Free Swivel Fitting For Pressure Washer Gun, Hose(3/8 NPT Male to Female-2Pcs) :
Milton Nylon Swivel End Recoil Air Hose, 3/8" male NPT, 3/8" x 50' - Midwest Technology Products
Amazon.com: Flexzilla Swivel Whip Air Hose, 3/8 in. x 6 ft. (1/4" MNPT Ball Swivel x 1/4" FNPT Ends), Heavy Duty, Lightweight, Hybrid, ZillaGreen - HFZ3806YW2B : Tools & Home Improvement
Flexzilla Pro 1/2 In. Barb 3/8 In. MNPT Reusable Air Hose End with Swivel - Power Townsend Company