Breather Vents
  These low silhoutte versions of the muffler/filter are useful where space is a problem and/or to prevent contamination. Use for vacuum relief or pressure equalization in gear boxes, oil tanks, reservoirs. BREATHER VENTS SHOULD NOT BE USED AS EXHAUST MUFFLER.
• 1/8" to 1-1/2" pipe thread
• Max. operating pressure: 250 PSIG
• Operating temperature: 0° to 300°F