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Composite Manhole
The Composite Manhole is manufactured with a lightweight composite cover, which is stronger than steel at less than 25% of the weight. The composite cover is constructed of environmentally safe materials, which are not permeable or weakened if exposed to hydro carbons. The composite materials are non-conductive to electrical currents and do not develop and/or hold electrical charges.
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318L-3800AMC Lightweight Manhole 38” X 10” Non-bolted
Morrison –Cover Diameter: 38-7/8”, Overall Height: 12”
318L-3900AMC Lightweight Manhole 38” X 18” Non-bolted
Morrison – Cover Diameter: 38-7/8”, Overall Height: 20”
318L-4400AMC Lightweight Manhole 44” X 10” Non-bolted
Morrison – Cover Diameter: 44-7/8”, Overall Height: 12-1/2”
318L-4500AMC Lightweight Manhole 44” X 18” Non-bolted
Morrison –Cover Diameter: 44/5/8”, Overall Height: 20”
418L-3800AMC Limited Access Lightweight Manhole 38” X 10”
Morrison – Cover Diameter: 38-7/8”, Overall Height: 12”
418L-4400AMC Limited Access Lightweight Manhole 44” X 10”
Morrison – Cover Diameter: 44-7/8”, Overall Height: 12-1/2”
418L-4500AMC Limited Access Lightweight Manhole 44” X 18”
Morrison – Cover Diameter: 44-7/8”, Overall Height: 20”
418LC-3800AMC Limited Access Lightweight Manhole 38” X 10”
Morrison – Cover Diameter: 38-7/8”, Overall Height: 12”
418LC-3900AMC Limited Access Lightweight Manhole 38” X 18”
Morrison – Cover Diameter: 38-7/8”, Overall Height: 20”
418LC-4400AMC Limited Access Lightweight Manhole 44” X 10”
Morrison – Cover Diameter: 44-7/8”, Overall Height: 12-1/2”
418LC-4500AMC Limited Access Lightweight Manhole 44” X 18”
Morrison – Cover Diameter: 44-7/8”, Overall Height: 20”