Aluminum Manhole Shield
Product Description
All Aluminum Fabrication
Weighs 24 LBS
Pneumatic seal keeps ground water from flowing into the open manholes
Just Inflate Tube with 5-10 lbs. of Air or Nitrogen to form a Water-Tight Seal
No Clamps or Sealing Compounds required
Series 2730 (reversible 27" & 30") fits most Communications Manhole Openings
Model 3336 (33" & 36") fits many Electric Utility Manholes
Custom Sizes are available