Low profile cover adds only 1/2 in. to the riser. Fits 24 in. inside diameter ribbed and smooth wall pipe. Green structural foam HDPE. Includes four (4) Stainless Steel Screws to attach Cover to Riser Ring. Compressible rubber gasket.
Fits new ADS 24 (23.5) and old ADS 24 inside diameter double wall corrugated pipe