PURCHASED A PUMA PK-65 PUMP. AFTER VIEWING THE PUMA WEBSITE AND THE CS WEBSITE IT WAS DETERMINED THERE WAS A MAX RPM DISCREPANCY. I HAD ALREADY ORDERED A 3.5 INCH PULLEY, BUT IT WAS DETERMINED AFTER DISCUSSION, I NEEDED A 4 INCH. COMPRESSOR SOURCE ACKNOWLEDGED THE ERROR AND I WAS ABLE TO SEND THE WRONG ADVISED PULLEY BACK FREE OF CHARGE AND GET THE CORRECT ONE. SHIPPING WAS VERY VERY FAST AND APPRECIATIVE. THESE FOLKS ARE GREAT, BUT,I CANT SAY THE SAME FOR THE PUMP. THE WEBSITE SAYS 14-22 SCFM BUT I ONLY GOT 13.8 AT 90PSI USING THE WEBSITE CALCULATOR. I WAS HOPING FOR A BIT MORE, BUT I WILL DEAL WITH IT. I WISH I HAD WENT A DIFFERENT ROUTE ON THAT. BUT, WITH THAT BEING SAID, THE CUSTOMER SERVICE WAS SECOND TO NONE AND I WOULD GLADLY BUY FROM THESE FOLKS AGAIN.
5 Pack 1/4" Male NPT Air Compressor Moisture Tank Drain Water Petcock Brass
This 5-pack of 1/4" NPT air compressor drain valves is an essential addition to any workshop or maintenance setup. Commonly referred to as petcock valves, these are used to drain moisture from air compressor tanks—helping protect your equipment from internal rust and corrosion.
Each valve is built from solid brass for durability and resistance to corrosion. The 1/4" male NPT threads (approx. 1/2" outer diameter) provide a universal fit for most compressor tanks. A knurled twist grip allows for easy operation by hand, and the internal seal ensures dependable, leak-free closure.
Product Features:
• Quantity: 5 brass petcock-style drain valves
• Thread Size: 1/4" Male NPT (approx. 1/2" OD with tape measure)
• Working Pressure: Rated up to 200 PSI
• Material: Solid brass for corrosion resistance and long life
• Grip: Easy-to-use knurled twist handle
• Install with 9/16" wrench
• Approximate Length: 1.3" (0.9" protrudes from tank)
• Ideal for draining water and condensation from air tanks
Perfect for replacing old valves or stocking up for future maintenance, this 5-pack provides a dependable solution at a great value.

