Pentair Tank Bottom Kit C520/C620

The Pentair Tank Bottom FullFloXF C520/C620 Replacement Set (Part #178830) is a heavy-duty, commercial-grade lower vessel base engineered explicitly for Pentair FullFloXF high-efficiency cartridge filter models C520 and C620. Molded from an ultra-durable, fiber-reinforced polymer, this rugged basin acts as the structural foundation for the entire filtration unit, offering immense resistance to high internal hydraulic pressure, chemical corrosion, and prolonged UV degradation. It features precision-machined bulkhead connection ports to align with the inlet and outlet pipes, providing a stable, leak-proof anchoring system that handles high-flow pool plumbing.

Because of its massive structural footprint and thick-walled, reinforced polymer construction designed to safely support large-scale filtration, this component is exceptionally heavy. The tank bottom set carries an actual product and shipping weight of approximately 45.2 pounds.