Pelsue 2730-12A Manhole Ring Aluminum 12In Tall For 27/30 Inch Opening New
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. All Aluminum Fabrication.
Shipping Weight 20 Lbs (Os)
Shipping Dimension 34"X13"X34"