These skimmer nets are used in the Aquascape Designs grande skimmer filters. Skimmer net sizes: Standard Skimmer-opening size 6 inches Large Skimmer-opening size 8 inches Grande Skimmer-opeing size 15.4 inches ponddepot@msn.com Copyright - All World Rights Reserved Pond pumps, Pond Kits and Pondless Waterfall kits, Underwater Pond Lights. Aquaclearer Extreme bacteria and String Algae Buster and pond fish food. Pond Depot provides Do-it-yourself pond kits and Pondless waterfall kits delivered right to your home at great prices! Thank you for shopping at Pond Depot you online pond superstore!