Poly Bladder Kit - 1/8" x 1/4" for QED SamplePro 0.75" bladder pump eBay The new AP4+ features upgraded

The new AP4+ features upgraded materials for many parts to further extend the service life of the pump and to broaden the range of conditions each model can be used in

Adjustable over a range from 20 SCFM to 60 SCFM the air flow is controlled at constant standard conditions of 25 degrees C temperature and 760 mm Hg pressure within plus or minus 1 SCFM

Built to perform on the most challenging and rigorous adventure

Intermittent signals indicate water

The ferrit scope determines if the ferrite content is too low or too high

Poly Bladder Kit - 1/8" x 1/4" for QED SamplePro 0.75" bladder pump eBay The new AP4+ features upgradedKit contains: Poly Bladder, replacement O ring Kit, and 1 8" x 1 4" Grab Plate.