Pentair 15" Crystal Collector Hub Assembly

The Pentair 15" Crystal Collector Hub Assembly (part number 24200-0110) is a specialized internal fluid management component designed exclusively for the lower collection array of classic 15-inch pool and spa sand filtration systems, including legacy Pentair Waterford JSAL series and Sta-Rite Cristal-Flo T-BP series high-rate sand filters (specifically model T-150BP-1 manufactured prior to 2009). Injection-molded from heavy-walled, high-impact ABS thermoplastic polymer, this circular hub base occupies the absolute bottom center of the pressure vessel beneath the sand media bed. Its primary operational role is to anchor the filtration system's slotted lateral fingers radially, creating a centralized intake matrix that captures clean water passing through the sand while acting as a physical block against the loss of dense silica particles.

During the standard filtration cycle, the hub channels this uniformly collected water straight upward into the main vertical standpipe for clean return to the pool. Conversely, during high-velocity backwash flow reversals, it distributes pressurized incoming water evenly outward through the laterals to cleanly lift and flush trapped dirt from the media bed. This structural design safely manages continuous internal system operating pressures up to 50 PSI without cracking, unseating, or experiencing fluid bypass under extreme pump vibration surges. Engineered to endure a lifetime of permanent submersion in dense sand beds and highly dynamic, chemically treated environments, it completely resists degradation from concentrated chlorine, bromine, and seasonal chemical treatments. Due to its rigid, hollow-spoke plastic profile tailored for 15-inch diameter filter tank configurations, this individual collector hub assembly carries a net product and shipping weight of approximately 0.65 to 0.85 pounds (about 10.4 to 13.6 ounces).