Special Aquascape Pond Air 4 Replacement Cartridge & Renew Kit

With the Aquascape Pond Air 4 Replacement Cartridge & Renew Kit, you can revitalize your old Aquascape Pond Air 4 Air Pump (sold separately). This kit restores your pump back to its original operating condition, and is ideal if you notice that your aerator’s output has decreased or stopped. All you have to do is replace the old diaphragms with the replacement cartridge and renew kit.