Landlords replacing the cartridge in the filter, the pool is pretty clear, but the bands are coming off the pleats. I'm thinking she's going to go to the pool store and buy what they sell her. I'm thinking if its a no name cheap cartridge I may try to return it and buy a nicer one online. From looking, looks like pleatco might be the best one to go with. Any thoughts. cartridge size is 10 1/16 x 23 5/8