• Area: 90 sq. ft. 

• Width: 8 7/8" 

• Length: 19 1/2" 

• Part Number: FC-1971 

• Top Style: 4" Open

• Bottom Style: 4" Open 

• Compatible replacement for: Purex/Pentair DM 90, Pleatco PDM90, Aladdin 19004, Pentair Pool Products/Purex R173580, Pentair Pool Products/Purex 175652 

The Unicel C-8402 R Compatible Pool & Spa Replacement Filter Cartridge is a compatible replacement filter also known as the Filbur FC-1971 filter cartridge. This swimming pool filter is an efficient filtration system built to work for a long time. The compatible Unicel C-8402 has a reinforced center core that distributes stress evenly across the filter and keeps it from cracking. This spa filter has a strong resistant band that will keep the pleat filters and place and performing at a high level. This pool filter cartridge has a number of components that improve the quality and efficiency of the filtration performance, including the top end filter media that keeps the filter running efficiently.