Amazon.com: Craftsman D27253 Air Compressor Pressure Regulator Genuine Original Equipment Manufacturer (OEM) Part for Craftsman & Porter Cable : Tools & Home Improvement
Porter Cable Pressure Regulator 1/4" NPT | eBay
PORTER-CABLE Porter-cable Regulator with-Gauge 1/4 In. Npt in the Air Compressor Accessories department at Lowes.com
PORTER-CABLE 1/4 in. Pressure Regulator at Tractor Supply Co.