Looking for top-end professional tools? This 2-gun kit includes all the tools necessary to do a complete Waxoyl application to the cavities and underbody. Spray Hardwax underbody protection with a SATA HRS-SF gun using a high-flow spray nozzle or an included K2-SF wand for detail work. This gun is easy to fill, has a large capacity canister, and sprays Hardwax beautifully. Waxoyl 120-4 cavity protection is sprayed with the lightweight, high-pressure SATA HRS gun coupled with the K-3 and K-4 wands. Together these tools fog the cavities for the ultimate protection.