u/diskokiss

Bought a replacement cover since the handle rotted off. It measured 19-3/4” to 20-1/8” diameter and set pretty flush in the riser. The new one I bought measures 20-1/4” and sits about 1/4” to 1/2” above the riser but otherwise seems fine.

Is it too big?

Should I squirt some foam around the edges to seal it?

Thank you