Deposits surface debris in easy-to-remove bag and breaks the surface tension for a cleaner pond. Compatible with standard BioFalls. This skimmer handles pumps from 4000 GPH to 10,000 GPH and pond sizes from 16ft. x 21ft. to 26ft. x 26ft. Includes: 1 filter mat, 1 net, & Skimmer Lid. SKIMLARGE Aquascape Designs Large Skimmer Replacement Filter MatThis replacement filter mat fits Aquascape Designs Standard and Large Classic Skimmers. aqdelaskrefiType: AquascapeDesigns" Aquascape Designs Large Skimmer Replacement Filter Net aqdelaskrefi1 Aquascape Designs Large Skimmer Replacement Simulated Rock Lid aqdelaskresi Aquascape Designs Large Skimmer Support Rack aqdelasksura Aquascape Designs Large Skimmer Plug aqdelaskpl Aquascape Designs Large Skimmer Filter Basket aqdelaskfiba Aquascape Designs Large Skimmer Weir DoorThe weir door is the black plastic door/flap with springs located in the skimmer face plate. Fits Aquascape Designs Large Skimmers (8" face plate). 8weirdoor Most Orders Shipped Out Same Day! Premier Ponds LLC pondinfo@premierponds.com U.S.A. Copyright © 1999 - 2007 Premier Ponds LLC, North Salem, New York. All rights reserved. Thermo-Pond Heater 3.0, Aquascape Designs Pond Kits, ScareCrow Sprinkler, Nursery Pro Micro Pond Kits, AquaClearer, Microbe-Lift, Great Blue Heron Decoy, Pond Liners, Thermo Pond Heater & Deicer, Premium Koi Food, Select Koi, Butterfly Koi, Pond Aeration Pumps, Flexible PVC Piping, BioFalls, Skimmer, Aquascape Pumps, Cat Stop!, Animal Control Products, Pond Netting.