Pentair 100 SqFt Clean & Clear Center Core

The Pentair 100 SqFt Clean & Clear Center Core (Part #59053700) is a structural internal replacement skeleton engineered exclusively for Pentair Clean & Clear and Clean & Clear Predator 100-square-foot single-cartridge pool and spa filters. Molded from a high-impact, chemically inert polymer, this rigid, perforated black column stands at the true epicenter of the filter tank. Its essential function is to provide unwavering internal support for the massive 100 sq. ft. pleated cartridge fabric, keeping the filter element from collapsing inward or distorting under the crushing hydraulic force of high-volume water pump cycles. By keeping the core open, it ensures a uniform distribution of water flow throughout the filtration medium while guiding the clean, filtered water straight down into the lower manifold return plumbing.

This structural polymer support piece is rigid but entirely hollow, possessing an actual product weight of approximately 5.86 pounds (with packaged shipping weights typically listing right around 6.0 pounds).