This replacement cartridge/filter is brand new, 36” tall, 6.5” wide at the base, 6” wide at the top, with an inner diameter of 3”. It is designed to fit perfectly with your water softener system. The part number on it is 35922. Sold individually or in sets of four. It ensures that your system operates at peak performance, providing you with clean and healthy water for your home. With its high-quality materials and top-notch design, this cartridge/filter is durable and long-lasting. If you're looking to replace your current cartridge/filter, this product is the perfect choice. It's easy to install and maintain, and will provide you with years of reliable service. So go ahead and order one today, and enjoy the benefits of clean, soft water in your home.