New 5th Generation model. Now with a smooth needle nose foam dispensing tip for easier maintenance. The newly designed 4” narrow plastic dispensing tip allows for more precise foam dispensing in narrow gaps. Attaching an 8” flexible plastic extension tube to the 4” narrow tip nozzle allows foaming in tight spaces and for extended reach. The Foam N' Seal FNS500 is a premium foam dispensing gun designed for professionals in the weatherization of residential and commercial buildings. The FNS500 offers excellent value and has similar or superior features when compared to other foam gun dispenser brands. The FNS500 has been thoroughly field-tested for over a decade and has proven itself to be a dependable foam dispensing gun. It dispenses consistent foam or adhesive every time and features precision control of foam dispensing for filling small gaps, cracks, and voids. It is also ideal for filling door and window door jamb voids. The polyurethane foam dispenser is designed for long life with thicker gauge metal, and quality parts and has a Teflon coated gun body, canister adapter basket, and gun barrel. The internal stainless steel needle rod controlling the flow of foam and check valve is also PTFE coated. We use a custom formulated PTFE to improve resistance to cold flow, reduce wear friction, and increase PTFE adhesion, coating stiffness, and surface hardness. The FNS500 is compatible with most single-component polyurethane foam sealants that use a universal screw-on thread adapter on the top of the foam sealant or adhesive canister. Works with Great Stuff Pro Handi-Foam, Handi-Seal, Touch ‘n Foam, Touch ‘n Seal, Hilti, and Todol insulating foam sealants. 5" extension nozzles are available. Search for B08B1PPWT8. **All product brand names and trademarks are property of their respective owners and are used on this website for identification purposes only and do not imply endorsement by the trademark owners.