New Pentek WS-20BB Water Softening Resin Filter Cartridge 4 1/2"x20" New Pentek WS-20BB Water Softening Resin Filter Cartridge 4 1/2"x20" New - Same Day Ship The New Pentek WS-20BB Water Softening Resin Filter Cartridge is designed to reduce hardness in water by removing calcium and magnesium ions through high-capacity cation exchange resin. Measuring 4 1/2" x 20", it fits standard Big Blue housings and is ideal for residential and light commercial water softening applications. This cartridge helps protect plumbing systems and appliances from scale buildup, extending their lifespan and improving efficiency. It features durable construction for long service life and consistent water quality performance. Listed by: Vienna (Sales Team) ?Always do your best. What you plant now, you will harvest later.? -Og Mandino (A positive moment brought to you by Help Resale) About Us Welcome to Help Resale, your go-to consignment shop where value meets quality. At Help Resale, we're dedicated to providing you with an exceptional shopping experience, whether you're looking to find the best deals or consign your items. Need to buy a product, but don't see it in our store? Please feel free to reach out to us and we will help you find it! Help Resale 7200 Fair Oaks Blvd Suite 120 Carmichael CA 95608 Business Hours: Monday-Friday: 9:00 am to 5:00 pm (PST) All product and company names are trademarks TM or registered trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. (description exceeds maximum possible length)