[APPLICATION] Replacement Chamber for Ionizer Hybrid Pool Treatment System and Perma Salt System. Pool Type: Above-Ground Pool, Hot Tub/ Spa, In-Ground Pool. The Chamber is designed for swimming pools up to 40,000 gallons [A MUST HAVE] Therefore, to clean pool water with ionizer Hybrid Pool Treatment System will be more healthy and eco-friendly. And you will need to replace the chamber for the system when the red lights turns on. [RECOMMEND] To replace the chamber Annually ensures proper function . The Chamber can last 1-2 swim seasons depending on your climate and the bather load. [KEEP SAFETY]Will provide Natural Minerals into pool water, it helps to keep safety for you, your family and the environment. Prevent swimmers from Itchy skin, irritated eyes or swimmer's ear. [PERFORMANCE]The Chamber is not a filter or a cartridge. It is the tube chamber that holds the copper and silver electrode bars that are dispersed into the swimming pool water. Colour:Black Material:ABS+copper Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Package Contents: 1 * 4ch4002r replacement chamber Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.