This is Atlantic Water Garden's Foam Gun (Alloy) Deluxe (LF1310) or the Economy Composite (LF1315) We have a large selection of Installation Tools/Tools, Sealants & Patches and other water features from Atlantic Water Gardens.
Manufacturer's Description
Falls Foam is an expandable foam sealant used to stabilize stones, fill voids and seal joints during waterfall construction. 12oz. DIY Falls Foam is perfect for homeowner projects, while 29oz. Falls Foam cartridges and foam guns are indispensable tools for contractors.