Black Waterfall 7" Steel Polymer Spray Foam Applicator Gun

The Black Waterfall 7" Steel Polymer Spray Foam Applicator Gun for use with professional sized cans black waterfall foam. It is used to dispense waterfall foam to fill in cracks and holes between the rocks in a waterfall.  The gun helps provides consistent bead control of the waterfall foam, giving accurate and reliable coverage where applied. When you fill in the cracks and holes it allows the water to flow over the rocks rather than between or behind them. This creates a more even flow of water. It also works very well for locking stones together.