EasyPro Black Waterfall Foam is a premium grade, made in the U.S.A. product that is superior to other brands - especially the cheap imported ones! Use this black foam to fill in cracks between rocks to prevent water from being "lost" over the waterfall.
Improves water flow visually
Black color hides foam in the shadows of the rocks
Fish safe, non toxic formula — ideal for use with water features
Minimal expanding foam — fills in cracks with less trimming of excess foam versus the triple expanding foam which over fills cracks and needs extensive trimming when done
29 ounce gun foam also available for high volume users for use with foam guns (below), cleaner should be used any time the can is removed and left off — this will remove any un-cured foam from inside the gun.