Filbur FC-2716 Cartridge, 60 sqft, ht, 2" SAE b, 6", 17-1/2"Reemay is Spunbound Polyester made with a continuous filament construction to minimize fiber migration that adds strength and there are no binders to limit filtering area. It is offered in a 3 ounce media. This filter cartridge is available in an Antimicrobial version, which is an exact replacement. Please see it here.