Oase AquaOxy 450 Air Stone & Tubing Set is a product listed under the Oase brand. Includes Two Replacement Air Stones. Total of 16 ft Silicone Air Hose. For Use With AquaOxy 450 Specifications and pricing on this page reflect the data published by the source retailer at the most recent catalog refresh. Verify the current listing on the retailer page before purchase.