HYDREX A/C TABSAir Conditioning Drain Pan & Drain Line Treatment Hydrex 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 use Hydrex A/C Tabs keeps drain pans and drain lines clean and free of debris. Additional Information: 30 Tablets 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. Hydrex may be more effective if the pan or reservoir is drained and cleaned before treatment xx NOTE: Completely clogged drain lines must be cleared prior to use. xx 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 Available Note : Images are for illustration only. Actual item may vary.