Polylok 20" Heavy Duty Riser & D-Box Grate (3017-G20)

Ideal for use with our risers and drain boxes, these 20” grates are made of HDPE with the highest UV Protection on the market today. These grates will withstand normal residential and light commercial traffic.20” round grate for Polylok 20” catch basins & risersSkid resistant surfaceHighest UV protectionOutside diameter 22.04" / Inside diameter 20.46"