Amazon.com: Dreyoo 2 Pcs Dishwasher Snap Coupling Adapters, Faucet Adapter for Portable Washer Compatible with Danco 10521 Brass, Hose Adapter for Sink Faucet with Aerators 15/16''-27M or 55/64''-27F x 3/4'' GHTM :
Waterloo 1/2" NPT Female Inlet Faucet Couplings
Homewerks Worldwide Faucet Coupling Nut 1/2 Id-CH-2pack in the Supply Line Accessories department at Lowes.com
Amazon.com: FLYWTR Faucet Coupling Nut, 63/50 Inch 32 MM Quick Tighten & Release Lock Nut, One Hole Faucet Shanks Fixing Accessory, Fastener for Attaching to Faucet Shanks from Underneath the Counter :
Standard Faucet Coupling Nut || Chrome Plated Brass || Krome Dispense
Faucet Coupling Nut – The Cleveland Brew Shop
BrassCraft 3/8 in. Compression x 1/2 in. FIP x 30 in. Braided Polymer Faucet Supply Line B1-30A F - The Home Depot
Amazon.com: T&S BRASS Eterna 200 Series Faucet Coupling Flange with Washer Lead-Free 002893-40 : Industrial & Scientific
Keeney Plastic Faucet Coupling Nuts in the Supply Line Accessories department at Lowes.com
Do it 3/8 In. or 1/2 In. Plastic Basin Faucet Nut (2-Pack) - Zettler Hardware