These optional screen kits are plastic mesh that attach to the bottom screen that is included in the original purchase of your Kasco® unit. Please Note: The first picture shows an example of the plastic mesh screen kit. The second picture shows how the plastic mesh screen kit attaches to bottom screen. Part # Description 284305 Bottom Screen Kit, [5HP & 7.5HP J Fountain] w/Nozzles, SS Bottom Screen Vertical Bars & Both 1/4" & 3/4" plastic mesh screen, Screen Hardware 284302 Bottom Screen Kit, [2HP & 3HP J Fountain] w/Nozzle full set, SS Hex Bottom Screen, Screen Hardware 284300 Bottom Screen Kit, [2HP, 3HP, 5HP VX Fountain] SS Bottom Screen Vertical Bars, Top Screen, 3/4" mesh, Screen Hardware 284309 Bottom Screen Kit, [5HP & 7.5HP J Fountain] SS Bottom Screen Vertical Bars & 1/4" & 3/4" plastic mesh screen, Screen Hardware 284303 Bottom Screen Kit, [2HP & 3HP J Fountain] SS Hex Bottom Screen, screen hardware 990160 Bottom Screen Kit, [2400A, 3400A, 4400A] SS Bottom Screen Vertical Bars, 3/4" plastic mesh screen, Screen Hardware 990165 Bottom Screen Kit, [8400HP,2.3HP,3HP,5HP Aerator/pre-2020 J] SS Bottom Screen Vertical Bars, 3/4" mesh screen, Screen Hardware 990176 Bottom Screen Accessory Kit, 1/4" mesh w/zip ties and instructions to attach (can be added to anything that has a screen 1/2, 3/4 & 1HP units would need to cut to size) 990171 Bottom Screen Accessory Kit, 3/4" mesh w/zip ties and instructions to attach (can be added to anything that has a screen 1/2, 3/4 & 1HP units would need to cut to size) PLEASE NOTE: These Special-Order items dropship from the manufacturer. Free feel to email us at [email protected] or use the Chat Feature. Related Products Replacement Float Assemblies Replacement Floats