Check the listing for details. Drainview Model 67 for Draining Expelling Drain port Size 3/8" for Compressor. Condition: New. Listed at 69.00 USD. Drainview Model 67 for Draining and Expelling on air Lines Condensed moistureEmulsified oilViscous Condensate See-Level Auto Drain Drain port Size 3/8" When condensate level rises, float lifts, allowing air under pressure to flow through the hollow stem into the Auto-Drain where a diaphragm distends with increasing pressure and opens a large scavenger-action dumping valve. Float drops and thew control unit waits for next accumulation. Indestructible cellular floatFoolproof pilot principleNo linkage to corrode or plugExtra Large dumping valveScavenging actionManual Override See- Level draingauge chamber : High Impact Heavy Duty Shatterproof Poly-carbonate Draingauge Body and Ring : Corrosion-resisting Zinc Auto-Drain Valve : Bronze Body with Buna-N Diaphragm and Seat Disc Working Pressure : 30 PSI Minimum to 150 PSI Bowl Guard Included at no Extra Charge