WHY CHOOSE 4WDETAIL? Weve bench tested our 4WD Wash against all other washes on the market... From the old school car wash brands, to the boat wash turned 4WD wash brands as well With our 4WD Washs strength, Pro Detailing background & 1000s of hours of ACTUAL R&D + thousands of happy 4WDers. You know 4WDetail products do what they say. Try our 4WD Wash Today! 4WDetail, the pioneers of New-age 4WD Care Technology. THE ULTIMATE 4WD WASH INFUSED WITH RUST INHIBITORS PH Neutral at 1:9 parts dilution ratios or less Dissolves & dislodges surface salt & salt deposits Chemical + physical rust inhibitors Lifts, loosens & dissolves mud with deep expansion technology Captures loose sand for easy removal with The Sand Assassin Ceramic coating safe at 1:9 parts dilution ratios or less 100% Biodegradable Solution - Grass & garden safe! Made, bottled, engineered & tested in QLD, Australia PRODUCT INFO Designed and produced locally in Queensland, Our Salt Exterminator underbody wash is tried and tested on local Queensland beaches & muddy trails, to ensure rust prevention and protection when taking your 4WD off-road and on the beach. Infused with physical & chemically activated rust inhibitors, salt dissolving agents and extreme mud lifting deep expansion technology, our Salt Exterminator is the only treatment for your 4WD underbody & exterior. Designed & tested with the sole purpose of taking care of your 4WD underbody & exterior, with zero compromises. The Salt Exterminator is a true one step product.