Made for use with standard 3.5 and 5 gallon black buckets.

Best used for our 3 Gallon Black Hydroponic Buckets and 5 Gallon Black Hydroponic Buckets.

Made for use with standard 3.5 and 5 gallon buckets. (These lids currently have a ridge in them that makes it difficult for DIY cloner buckets, and drilling holes for net cups.)