PondH2o Bio Gravity Pond Filter 1000 Gallon Pond The PondH2o pond filter box is an outstanding small pond biological filter, that produces clean and clear water for healthy fish and plants to thrive. Simple Box filter system - perfect for filtering a small pond, no electricity required (pump needed) Includes Japanese matting, coarse / fine foam, bio balls filter media, 2 Inch Outlet pipe,Thermometer built into lid, Dirty filter indicator built into lid, 1000 PGH (6000LPH) max The aerated water passes through Japanese matting and coarse / fine filter foam which extract larger pieces of debris. Also included are bio balls which provide a large surface area for nitro-bacteria development, and will help produce and maintain a high water-oxygen level. 50mm outlet ? Inlet hosetail fits 3/4''/ 1''/ 1 1/4'' / 1'' 1/2'' or 20, 25, 32 38mm hose ? Water outlet size 2' ? Dimensions (H x W x L): 15'' x 10'' x 15'' or 400 x 275 x 400mm ? Thermometer Indicator built into lid ? 1000 PGH (6000LPH) max We sell many Aquatic Products, Check out our Store!! Terms and Conditions. We use all approved methods for accepting payments. Sales Tax will be added to all shipments based on regulations. We always try to combine purchases, please contact us directly for a personal service. You will be notified on the day that your goods have been dispatched via e-mail with tracking which is used on all purchases. Please note that if there are any problems, contact us first via e-mail giving full details of any problem along with your user ID. We use USPS and UPS as our chosen carriers shipments to Hawaii, Alaska Puerto Rico may incur surcharges, contact will be made to advise before shipment at which point the order can be canceled if desired. Orders placed on Saturday/Sunday Public Holidays will be processed next working day. We pride ourselves on excellent feedback, if any part of the buying experience is not to your satisfaction, please contact us to rectify before leaving feedback. By committing to buy you are agreeing to the Terms Conditions stated above.