RadonAway 23005-1 GP501 Radon Mitigation Fan, 3"

Mounts on duct pipe or with integral flange 3" diameter ducts for use with 3" or 4" pipe Electrical box for hard wire or plug in ETL Listed - for indoor or outdoor use Seams sealed under negative pressureYou may also like Milwaukee Instruments Milwaukee MW100 Ph Meter With 2 Point Manual Calibration.