Nordic Spas replacement filters by Unicel Industry’s most complete line of replacement filter elements Manufacturer part number 4CH-935 Bottom End Cap 2" (inside diameter) female SAE thread 0" id Additional Information: Maintain your water clarity and keep your water clean with a Unicel replacement filter element.  Unicel as well as the OEM filter company’s use a spunbonded, 100 percent polyester material called Reemay as their filter medium.  Reemay filter fabric is an FDA approved material for milk filtration and is a white material.  Some low end manufacturers are using a yellowish material to reduce costs; this is also reducing quality and durability.  The Unicel replacement filter elements are designed to the performance standards of the original filter manufacturer.  To maximize the life of your filter cartridges and to save on shipping it is recommended to purchase two filters and alternate two sets of cartridges when cleaning.

OEM-quality Unicel® filter cartridge, model C‑4975, designed as a direct replacement for various spa and hot tub applications. Large pleated polyester media offers a high filtration surface area for efficient debris capture. Built with a durable core and reinforced end caps—designed for repeated cleanings. Compatible with multiple systems that previously used U‑29, US‑68, or C‑709 cartridges. Easy to clean by rinsing with a hose; replace every 12–18 months for optimal performance.

  Nordic Spas replacement filters by Unicel Industry’s most complete line of replacement filter elements Manufacturer part number C-2302 Diameter: 2 7/8 inches Length: 17 1/16 inches Top: Open 1 1/16 inch inner diameter Bottom: Open 1 1/16 inch inner diameter Maintain your water clarity and keep your water clean with a Unicel replacement filter element.  Unicel as well as the OEM filter company’s use a spunbonded, 100 percent polyester material called Reemay as their filter medium.  Reemay filter fabric is an FDA approved material for milk filtration and is a white material.  Some low end manufacturers are using a yellowish material to reduce costs; this is also reducing quality and durability.  The Unicel replacement filter elements are designed to the performance standards of the original filter manufacturer.  To maximize the life of your filter cartridges and to save on shipping it is recommended to purchase two filters and alternate two sets of cartridges when cleaning.

Maintain sparkling clean water in your spa or pool with the Rainbow C-2608 Cartridge Filter, specially designed to fit Rainbow Model 19 inline filter systems. This 8 square foot filter features pleated filtration media that maximizes surface area for debris capture, ensuring efficient water flow and extended filter life. A reliable solution for small to medium-sized systems, this OEM-quality replacement helps reduce maintenance time while keeping your water crystal clear. Compatible with Rainbow Model 19 inline filter systems 8 sq. ft. filtration area for effective debris removal in compact systems High-quality pleated media ensures maximum dirt-holding capacity Helps maintain water clarity and optimal system performance OEM equivalent performance for dependable fit and function Simple to replace and clean for easy ongoing maintenance Whether you're replacing a clogged filter or keeping a spare on hand, the C-2608 is a trusted choice for keeping your spa or pool water in top condition.

Unicel filter cartridges are simply the finest replacement filters you can buy for your pool or spa, being made of the finest materials to meet or exceed OEM filters. Its heavy-duty polyester is designed to last far longer than cheaper alternatives, while having more pleats to improve filtering capacity. Best of all, Unicel filters are made right here in the USA for the highest possible quality, allowing you to buy with confidence.

Nordic Spas replacement filters by Unicel Industry's most complete line of replacement filter elements Manufacturer part number C-4326 25 Sq FtLength: 13 5/16"Outside Diameter: 4 15/16""Top Hole: 2 1/8" OpenBottom Hole: 2 1/8" Additional Information: Maintain your water clarity and keep your water clean with a Unicel replacement filter element.  Unicel as well as the OEM filter company's use a spunbonded, 100 percent polyester material called Reemay as their filter medium.  Reemay filter fabric is an FDA approved material for milk filtration and is a white material.  Some low end manufacturers are using a yellowish material to reduce costs; this is also reducing quality and durability.  The Unicel replacement filter elements are designed to the performance standards of the original filter manufacturer.  To maximize the life of your filter cartridges and to save on shipping it is recommended to purchase two filters and alternate two sets of cartridges when cleaning.