The FNS850 has similar features as other foam gun brands like the Great Stuff Pro™ XL foam dispensing gun. The FNS850’s 45-inch long barrel is ideal for foam sealant applications in areas that are difficult to reach. The FNS850 foam gun is also ideal for dispensing foam adhesive for sub-flooring installation. It minimizes back pain as the user can apply the foam adhesive while standing up. The stainless steel foam canister adaptor basket is Teflon™ coated to reduce foam build-up, making it easier to clean the gun. It also makes it easier to attach and remove foam canisters. This foam dispensing gun is reusable for up to 30 days. The FNS850 offers comparable product features to major long barrel foam gun brands but at a more economical price.

The FNS850 works with all single-component foam sealant brands with a universal screw-on threaded canister top such as GREAT STUFF PRO™, Touch ‘n Seal™, Touch ‘n Foam™, IPF, Owens Corning ProPink™, Hilti™, Fomo Handi-Foam™, Todol Pur™, DAP Draftstop™, Tytan™, and Versi-Tite™.  The FNS850 is not compatible with foam sealant and adhesive products that use a screw-on plastic straw to dispense foam.


■ TEFLON® coated non stick foam canister adapter
■ Stainless steel needle and check valve
■ Large back-screw mechanism with precise adjustable bead control and shut off feature
■ Stainless steel barrel with TEFLON coating for easy foam removal
■ Good bead control allows variable bead size from 1/8″ to 3″
■ Lightweight reinforced aluminum body for better control and comfort
■ Less foam waste compared to straw dispensers
■ No post-dispensing foam drip
■ Reusable for up to 30 days
■ An alternative to the Great Stuff Pro ™ 14 XL Long Barrel Foam Gun, Touch ‘n Seal Sharpshooter Long Barrel gun foam applicator, Todol Pageris GU24, and the Tytan Pro Long Barrel foam gun.


■ 40″ Length (45″ barrel + gun control body assembly)
■ 1.875″ Wide (widest point)
■ 7.5″ high
■ Weights 2 Lb 3 Oz
■ Includes two 8″ long flexible plastic tubes for extending the reach of the gun (tubing attaches to the barbed dispenser tip). Two 2” long narrow tip plastic nozzle for fine foam dispensing.

**All product brand names and trademarks are property of their respective owners and are used in this website for identification purposes only and does not imply endorsement by the trademark owners.

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