Home Boat Maintenance Manholes & Hatches 20” Single Bolt Manhole – 82 lbs. (Painted Steel) ICF 20” Single Bolt Manhole – 82 lbs. (Painted Steel) $267.29 20” Single Bolt Manhole – 82 lbs. (Painted Steel) quantity Add to cart Product Details Product Details Painted Steel. Single Bolt Manhole (82 lbs.). A: 20″. B: 17-3/4″. C: 3/8″. D: 1/2″. E: 4″.
