The strong, durable SSI Manhole Insert from Sealing Systems can help stop unwanted inflow of rainwater through the manhole cover. The manhole cover inserts are custom sized to provide an enhanced fit and seal, and are manufactured from ultra-high-density polyethylene. They are simple to install with in-house personnel. 800/478-2054; www.ssisealingsystems.com.
Inserts - Sealing Systems SSI Manhole Insert
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