Blue Thumb Handi-Foam Black Spray Foam - 24oz Floating More flexible than traditional urethane

More flexible than traditional urethane

and bell pattern)

Includes winter-resistant 3/16" silicone airline with preassembled check valves

as different animals mistake it for a live owl

Blue Thumb Handi-Foam Black Spray Foam - 24oz Floating More flexible than traditional urethane24oz Professional Handi Foam Handi Foam black spray foam expands & seals gaps between rocks and the liner. This diverts water over the rocks, instead of beneath them. Contractors use it during professional installations to simplify waterfall construction. For use with Professional Foam Applicator Guns available in Steel or Gold We recommend Professional Foam Gun Cleaner PB1533