Check the listing for details. SpaGuard Filter Cleaner (1 qt) (2 Pack). Condition: New. Listed at 39.98 USD. SpaGuard Filter Cleaner (1 qt) (2 Pack)Part #42654BIO/2 SpaGuard Filter Cleaner chemically breaks down oils and dirt that stay embedded in your filter's fabric. It helps keep water clear by promoting better filtration. Product Information:Cleans oil and scale from filters of all typespH 1.0Helps keep water clear by promoting better filtrationEasy to use applicatorDirections for use:1. Remove filter elements and remove excess debris with garden hose with a pressure nozzle2. Spray this product directly onto the filter and allow to soak for 15 minutes. Light brushing may be required for heavy oil, dirt or scale accumulations. As an alternative, place the cartridge into a solution of 1 part of this product mixed with 3 parts water. Allow to soak for 1 hour3. Rinse elements clean with maximum garden hose pressure4. Reassemble filter and resume normal operation5. Spa and hot tub filters should be cleaned every 4-6 weeks using SpaGuard Filter Cleaner.Returns are not accepted on opened or used products unless covered by Warranty An RMA/RGA is required to return all hearth parts A 10% restocking fee will be applied to all returns without an RMA/RGA Buyer pays all return shipping unless covered by Warranty If you have any questions please contact Clearview Fireplace and Patio We would be happy to help