1/2" NPT Compressed Air Filter Regulator Lubricator Combo,Air Tool Compressor Filter with Gauge(0-150PSI),Air Dryer for Compressor,Water/Oil Trap Separator(Manual Drainage): Amazon.com: Industrial & Scientific
Campbell Hausfeld 3/8 in. Filter/Regulator PA212503AV - The Home Depot
Air Compressor Filter Regulator Moisture Water Trap Cleaner Separator Tool,Compressed Air Filter Regulator,3/8'' Water Trap Cleaner Separator,Compressor Moisture Trap for Paint Spray and Plasma Cutter - Amazon.com
1/8" NPT Mini Metal FRL Air Filter Regulator with Lubricator | Milton Industries — Milton® Industries Inc.
Rhino Air Filter Regulator 1/4" | TankAndBarrel.com
T-H-B CO EDGE INDUSTRIAL in-LINE Compressed AIR Filter Regulator Combo Piggyback, Poly Bowl and Metal Bowl Guard, 5 Micron Element, Adjustable from 7 to 145 PSI (1/2" NPT) - Amazon.com