Aqueous Cleaners Product Line UltraKlean 1020LFi Fire Resistant & Readily biodegradable Hydraulic Fluids. (View Product Information) UltraKlean 3000AC Synthetic, fire-resistant hydraulic fluid designed specifically for Electro-Hydraulic Control valves used in the Power Generation industry. (View Product Information) UltraKlean 4000K ISO 46, Water Glycol, Fire Resistant Hydraulic Fluid (View Product Information) UltraKlean FSW ISO 68, Water Glycol, Fire Resistant Hydraulic Fluid (View Product Information) UltraKlean SC High-performance, water-glycol hydraulic fluid. For systems operating beyond 3,000 psi (View Product Information)