Amazon.com: Master Airbrush Heavy Duty Premium - True Diaphragm Mini Regulator with Gauge and Water Trap Filter, Fits Airbrush Compressors : Arts, Crafts & Sewing
How are the air filters and regulators that HF sells? : r/harborfreight
Pneumatic AFR2000 1/4 inch NPT Air Filter Pressure Regulator Kit (0 to 145 Psi) Air Tool Compressor Filter with Pressure Gauge - Amazon.com