https://www.acehardware.com/departments/plumbing/parts-and-repair/drain-grates-and-covers/4695672
NDS 3 in. White Round Plastic Drain Grate Mfr# 912 - Ace Hardware
3-inch Round Grate Styrene. Used to drain excess water away from patios, pools, lawns and other outdoor areas. Fits 3-inch sewer and drain pipe and fittings....
plastic drain gratewhite round
https://www.homedepot.com/p/NDS-12-in-Square-Catch-Basin-Drain-Grate-Decorative-Wave-Design-Sand-Plastic-1224S/204271488
NDS 12 in. Square Catch Basin Drain Grate, Decorative Wave Design, Sand Plastic 1224S - The Home...
Visit The Home Depot to buy 12 in. Plastic Wave Design Square Decorative Grate in Sand 1224S