Prevent inflow into sanitary sewers with the watertight, corrosionproof Lifespan System rubber manhole frame featuring a locking cast iron or composite cover that withstands 5 psi of water pressure. AASHTO H-25/HS-25 load-certified (H-20/HS-20 for composite cover), it’s suitable for low-lying and heavy-traffic areas. Available in 24-, 27-, or 30-in. clear opening sizes, the unit comes with tapered risers to easily adjust the frame to match surface grade.
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