 These clear lids allow you to see into the filter during backwash to confirm that the filter is backwashing properly. They are made of high strength isoplast and are slightly yellow in color to reduce algae from forming on them. These lids have been tested for use only on the Advantage Bead filters. Not for sale for use on any other brand filter. These lids come standard on all new Advantage bead filters.
"The ability to see inside a bead filter during operation is a major improvement in bead filter technology." - Darrin Gutierres, Diablo Koi |