The Nu-Calgon 4781-00 Turbo Tank Portable Sprayer is a battery-powered HVAC coil-rinsing system designed to remove cleaning residues from air conditioning coils using clean water. It features a 4.5-gallon removable tank and delivers up to 150 PSI water pressure through a durable hose and adjustable spray nozzles. It is suitable for ductless mini-splits, ceiling cassette units, air han... https://www.partshnc.com/4781-00-nu-calgon-turbo-tank-portable-sprayer