• Custom Manufactured to your specifications
  • Simply the best value on the market today!
  • Order factory direct and save more!

During a storm thousands of gallons of unwanted water and contaminants can enter a wastewater system causing damage and many hours of unwanted labor costs. Simply adding an SSi manhole insert can save damage and many hours of unnecessary work. Call today to get a quote and start saving now by ordering direct from the factory. Why pay a third party distributor when we can save you thousands of dollars by producing your inserts to your specifications to meet your schedule. We can produce the quantity you want, delivered when you want and most importantly, at the most competetive price on the market. In today’s market every penny counts and to get the very best value available call today!

  • Made of High Density Polyethylene, meeting the requirements of ASTM D-1248, Class A, category 5
  • Gas ventilation achieved through 2, 3/16″ holes in the sidewall
  • A nylon strap is installed to make removal of the unit a one person operation
  • Stops or prevents unwanted inflow of rainwater through the manhole lid
  • Controls sewer odors in residential areas
  • Dramatically reduces sewage treatment costs
  • Keeps foreign objects such as sand, oils, and debris from entering collection system

Ordering Information
Manhole Specifications (pdf document)

For more information or specific questions call Stuart, at 301-373-2372
or E-mail at