Formula 2000 Plus - X-Ray Processor Cleaner, Twin-Pack - 2 x 1 Liter Bottles. Tank & Transport Cleaner. For use with roller type processors, manual type processing tanks and Peri-Pro transports. This powerful two-part cleaner dissolves deposits in minutes with its effervescent action. Every three months use Formula 2000 Plus to deep clean all Peri-Pro and A/T 2000 XT processors. Twin pack of 2 bottles