Power Blue Filter Cleaner Spa Filter Diameter: 4-15/16"

Diameter: 4-15/16"

and even green water can all happen if low alkalinity levels are left unattended for too long

Spa Shock will not affect the water's pH level

Water flows thru the food grade carbon and KDF filter media to effectively reduce metals and other undesirable impurities in the hot tub

SpaBoss Cal-Rise is completely soluble in water and easily raises the calcium hardness level in your hot tub a capful at a time

Power Blue Filter Cleaner Spa Filter Diameter: 4-15/16"Application: Spray on Hose Off No Soaking Needed Adjust spray nozzle to stream, spray inside fabric pleats. Wait 4 minutes. Hose off using garden hose with spray nozzle. For best results, let cartridge air dry for fibers to expand.