Black Waterfall Foam - 16 oz. disposable

Black Waterfall Foam allows you to spray in foam around rocks and features to get just the correct spill out of your waterfall.  Just spray into the area you wish to fill in order to have the water "fall" over the section desired.  Once you break the seal on one of these cans, you either need to use all the product or dispose of what is left.  If you are looking for a reusable product, try the Professional Black Waterfall Foam with the Economy Caulking Gun.  Disposable 16 oz. can.