Cart ProductPriceQuantitySubtotal × Atlantic Water Gardens Complete Aeration System with Single Diffuser $1,543.99 Quantity $1,543.99 × OASE OxyTex Underwater Air Diffuser $117.99 Quantity $117.99 × OASE BioSmart 5000 Gravity Filter $239.99 Quantity $239.99 Coupon: Apply coupon Update cart Proceed to checkout Cart totalsSubtotal$1,901.97Shipping Enter your address to view shipping options.Calculate shipping Select a country / region…United States (US) Update Total$1,901.97 Proceed to checkout