PIG® Drive Over DrainBlocker® Drain Cover 23 5 cfm but also materials like PVC shape square but also materials like PVC Heavy Casted Iron Bow and Bed Confidently block drains from spills and water with this outdoor drain cover's super sealing bottom layer that conforms perfectly for a tight seal while the HogHyde® rubber top layer withstands years and years of repeated heavy vehicle traffic 375" H Brand PIG Drain Shape Square Drain Size Up to 30" Color Gray Ideal For Heavy Outdoor Vehicle Traffic Storage Temp Range Store from 0°F to 120°F Temperature Limit Works from 0° to 160°F Traffic Vehicle Traffic UV Resistant Yes Sold as 1 each Weight 22 lbs