High Flow Rate Inline air gap with 1/4-inch FIP or 1/2-inch Thread Inlet and 5/8-inch Compression Fitting or 3/-inch Thread Outlet. (AG150-002, 211212, GAP-A-FLO) - Amazon.com
Universal Triple Air Gap for Water Filters with Three 3/8-inch OD Ports (AG100-003) - Amazon.com
Universal Dual Air Gap with Dual 3/8-inch OD Ports (AG100-002, 34800) - Amazon.com
AG100-003 Universal Triple Air Gap for Water Filters with Three 3/8-inch OD Ports | AirGap International
DLA-G Airgap 1.5" PVC SCH40 - Airgap 1.5" PVC SCH40 - 1/2" ID Barb – Fresh Water Systems
Dishwasher Air Gaps | AirGap International
ET117-002 Multipurpose Air Gap with 3/8-inch Quick Connect for Installation on a 1-1/2-inch Standpipe with PVC Trap Adapters | AirGap International
Eco-Tech G-175 DLA-G15 Multipurpose Stand-Pipe Airgap, (Hub x Fipt) for all Schedule-40 DWV Stand-Pipes Reverse Osmosis 'RO' Water Softener Appliances - Amazon.com
Brushed Gold / Bronze / Brass Air Gap RO Faucet - $101.72