Filbur FC-6015 Cartridge, 155sqft,2-5/8"ob,3-1/2" fpt t,7-3/4",28-7/16",3oz"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. "