CLOGNEVER solution helps to keep the AC drain line/pipe free from all yeast, algae, bacterial growth, it does it by not letting the small organism cling to each other and clog the drain resulting in flood in the spaces, thanks to it’s soapy formula that works in keeping slime and growth in big industrial equipment such as evaporative coolers. You can pour manually about the 1/2 of the liquid into the cleanout port every month, or use the CLOGNEVER patented kit to do it for you automatically and gradually every 10 days for the whole year with a single bottle. Clognever kit Pays for Itself in No Time for its Proven Benefits! Clognever improves your everyday A/C performance and quality of life. Clognever positive hygienic results and operates without human intervention for up to five-years! Clognever is easy to install and fits ALL Air Conditioning systems! Clognever offers ultimate convenience giving its end-users a feeling of peace of mind, ultimate comfort and financial savings! Clognever is a MUST for every homeowner with its advanced technology and performance. You are buying only the 2 bottles.Minimizes risk of costly water damage not covered by your insurance. Biodegradable, Odorless, non Fuming and will not harm drain pan, pipes nor pumps. Used by Top A/C professional Contractors and educated Homeowners. Keeps a consistent outflow of Eco-friendly clear condensate water. Helps to Keep your AC drain line clean and free from algae and yeast growth.