18" x 18", Straight, Concrete Manhole Adapter

Precision Engineered to Eliminate Leaks Around Pipe Entrance to Manhole Walls; The Inherent Flexibility of These Water Stops also Allows Pipe Movement without Damaging the Seal Joint Itself; These Adapters are Particularly Useful for Pipe Lacking Compatibility with Concrete, Chiefly Plastic Piping

Manhole Adapter Fitting; Type Concrete Manhole, Straight; Size A 18 Inch; Size B 18 Inch