Air Intake Filter Assembly Air Filter Silencer Muffler for Air Compressor Pump 1/2" Made in the USA. Carbon Steel Construction for Indoor or Outdoor Use. 1/2" Male NPT thread. Please Note 1/2" MNPT Measures .840 Outisde Thread Diameter in Linear Inches. Enclosure Dimensions 3.56" Height x 3.25" Diameter. Filter Element Included with Integrated Gasket Seal. Can be Mounted Vertically or Horizontally. Rated for Up to 12 SCFM.Replaces Numerous OEM parts including Campbell Hausfeld, Champion, DV Systems, Husky, Porter Cable, Puma, Ramvac, Schulz, and Many More