This lid fits snugly over a standard 5 gallon pail. The material that this lid is made of is more malleable than the plastic that the bucket is made of. This lid has no inner seal, but is not required for sealing.
Pros
Installation Tip: If the lid is on the pail, only press on one section of the lid at first. Once a small portion of the lid is in place, go over the lid to complete the seal.