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  1. Stainless Steel Inserts with Tetherlok - Rainstopper

    The Stainless Steel Rainstopper is a patented manhole insert designed to eliminate inflow in your municipality’s sanitary sewer system. Along with mitigating sanitary sewer overflow, it also reduces the infiltration of street level …

     
  2. Parson Stainless Steel Manhole Insert | Vortex

    The Parson Stainless Steel Manhole Insert is manufactured from 18-gauge 304 stainless steel and has been proven effective in reducing or preventing surface water inflow to the collection system through the manhole lid.