RALSTON CANSAFE INC. 9401-12

Manhole shield, high impact polymer. Constructed of rugged, lightweight Polyethylene with bright yellow material that resists fading. Will fit 28 inch (71.1 cm), 30 inch (76.2 cm) and 32 inch (81.2 cm) diameter manholes with an inflatable seal that ensures a watertight seal. Designed with 4-outrigger support gussets that stabilize the shield and is 12 inch (30.4 cm) tall to keep water and mud out of manhole as you work. Can be used with Allegro gaurd rail and shield retainers.