Foamnseal FNS 800 NT 30" Foam Dispensing Gun Metal foam canister adapter, Stainless steel needle and check valve Extended barrel for jobs that are difficult to reach Excellent bead control, allows variable bead size No post-dispensing foam drip.Less foam waste. Restartable for up to 30 days Compatible with Great Stuff Pro, Touch n Seal, Fomo Handi-Foam, Handi-Stick, Seal Pro Guns