Wurth UBS all metal, under body spray gun. Perfect for the following applications:

Gravel Protection
Soundproofing
Wax Based Rust Proofing
Undercoating
Features:

Durable metal body
Adjustable brass spray nozzle ideal for adjusting product flow to create alternative spray patterns and different textures
Comfort grip aluminum handle
Only works with European threaded 1 liter cans
Use with both water and oil-based SKS, stone chip, underbody seal and body waxes
Easy-to-clean
Specifications:

Working Pressure: 40-60 psi
Approximate air consumptions: 5-8 CFM
Net Weight: 14oz.
Noise Level <80 dba