• Test 1210 cfm at 4 in.wg. (570 L/s at 1000 Pa).
  • Positive and negative pressure testing.
  • Simple analog gauges; no complicated multi-menu digital gauges.
  • Calibration certificate certified by Professional Engineer attesting to orifice plate’s 2% accuracy.
  • Swivel caster wheels to allow horizontal transport in a pickup or storage.
  • Industrial powder coated (hunter green) finish for long life.
  • Only 21 inches (0.53 m) wide to fit through most doorways.
  • Two piece, flange tap orifice tube with interchangeable orifice plate* so you don’t have to carry more than one orifice tube around.
  • Customer choice of orifice plate.
  • Optional orifice plates at additional cost: 1/2-inch, 1-inch, 2-inch, 3-inch, 4-inch or 5-inch ID [12, 25, 50, 75, 100 or 125 mm]. Click here to see maximum leakage you can test with each orifice plate.
  • 12.5 ft (3.8 m) of flexible duct.
  • 20 ft (6 m) of duct static pressure tubing.
  • Inlet damper and guard included with blower for varying airflow.
  • 115v, 1ph blower for the most demanding jobs.  Note 115V operation requires 30 amps.


  • 230v/1ph operation (15 amps).
  • Custom digital gauges run on 9v battery.
  • Additional orifice plates for wider flow range.



  • EN 1507, Ventilation for Buildings – Sheet Metal Air Ducts with Rectangular Section – Requirements for Strength and Leakage.
  • EN 12237, Ventilation for Buildings – Ductwork – Strength and Leakage of Circular Sheet Metal Ducts.
  • Eurovent 2/2, Leakage Rate in Sheet Metal Air Distribution Systems.
  • DW/141, Ductwork Leakage Testing.
  • SMACNA Air Duct Leakage Test Manual.

professional-engineer-stampStamped and Certified.
Anything Less is Rolling Dice.

Test air handler leakage!
Test several floors at once!
Test 615 cfm of leakage at 10 in.wg.!


panther duct leakage tester horizontal