HYDREXÃÂ Â A/C TABS Air Conditioning Drain Pan & Drain Line TreatmentHydrex A/C Tabs is designed for air conditioners, humidifiers and refrigerators, in which odors control and water overflow from the drain pan is a concern. It can also be used in the commercial air conditioning units that are commonly found in motels, hotels, hospitals, nursing homes, schools, apartment and office buildings. Hydrex A/C Tabs are packaged in plastic bottle for easy useHydrexÃÂ Â A/C Tabs keeps drain pans and drain lines clean and free of debris.Additional Information:30 Pan Tablets per Bottle Each Tablet is 2.0 Grams Helps Prevent Clogs and Water Leaks in A/C Drain Lines Helps to Remove Build-Up in Drain Lines Prevents Growth in Drain Lines and Drain Pans Directions for Use:Start treatment by placing 2 tablets per one ton of air conditioning into A/C drain pan. Add 2 additional tablets per one ton of air conditioning every three months or whenever odor occurs. HydrexÃÂ Â may be more effective if the pan or reservoir is drained and cleaned before treatment ** NOTE: Completely clogged drain lines must be cleared prior to use. **Replaces / Supersedes:429660 , CHM0469 , CHM-0469 , CHM00469 , CHM00308 , CHM0308 , CHM-0308 , PT151 , Pro-Treat 151 Wagner Pan Tabs , PT200 , Pro-Treat 200 , PT217 , Pro-Treat 217 , Rectorseal 68115 , Nu-Calgon 4296-60 , Pan-Treat Scum Tabs and many other Pan Tablet Products.Additional Drain Pan Treatments and Condensate Products AvailableNote : Images are for illustration only. Actual item may vary.