Check the listing for details. Kleer Drain Replacement Cartridges: Efficient Drain Maintenance Solution. Condition: New. Listed at 8.50 USD. Set of four replacement CO2 cartridges for the Kleer Drain OpenerRemoves clogs with a burst of air with no dangerous chemicalsComes with six replacement power disks needed for use Kleer Drain brand products represent a revolution in plumbing technology. Kleer Drain is the first effective drain opener that removes the most stubborn clogs effectively and safely. Does not use environmentally dangerous chemicals.For use with Kleer Drain instant drain opener (KD100)Includes four 8 gram CO2 replacement cartridges, six power discs, and one plastic splash shieldKleer drain gets its muscle from pressurized CO2 air technologyKleer Drain is a great tool to try before making an expensive plumber callNote: Product may vary by storeEasy to use.