Polylok 18″ Heavy Duty Cover/Lid for Corrugated Pipe (PN: 3007-HDC)

Amazon.com Price: $75.00 (as of 02/01/2024 23:24 PST- Details)

Fit’s 18″ corrugated or ribbed pipe. (Inside diameter: 17.30″ / Outside diameter: 20.57″)
Skid resistance surface
Highest level of UV Protection included