The Tier1 DPFPCC0021M13 is a 2-pack replacement pool filter cartridge designed as a compatible alternative for Pentair Clean & Clear Plus 320 systems. Each cartridge offers 80 sq. ft. of filtration area (320 sq. ft. total for a 4-cartridge system), making it an ideal drop-in replacement for OEM cartridges such as Pentair R173573, Unicel C-7470, Pleatco PCC80, and Filbur FC-1976. Its precise dimensions ensure a secure fit in Clean & Clear Plus 320 inground pool filtration housings.

The Tier1 DPFPCC0021M13 features a 20-micron filtration rating, capturing fine debris, dirt, algae particles, and sediment that sand and DE filters may miss. It is constructed with heavy-duty Reemay® pleated polyester media with strong end caps and a sturdy inner core to withstand high-flow pool pump pressures. This micron-level performance helps keep pool water crystal clear while maintaining optimal water flow through your Clean & Clear Plus 320 system.

The Tier1 DPFPCC0021M13 cartridges typically last 12 to 24 months, depending on pool usage, bather load, and water chemistry. For best performance, rinse the pleats with a garden hose every 4–6 weeks during pool season and deep-clean with a cartridge cleaner once per season. Replace the full 4-cartridge set together when cleaning no longer restores flow, when pressure stays 8–10 PSI above the clean baseline, or when the pleats show visible wear, fiber breakdown, or permanent staining.

The Tier1 DPFPCC0021M13 is manufactured in a facility that follows quality standards aligned with NSF/ANSI guidelines for pool and spa filtration components. While pool cartridges are not typically NSF/ANSI 42 or 53 certified (those standards apply to drinking water), the DPFPCC0021M13 uses FDA-compliant polyester media and non-toxic materials safe for recreational pool water contact. Its Reemay® media is engineered for chlorine and bromine resistance, ensuring long-term durability in chemically treated pool environments.

Since the Clean & Clear Plus 320 uses a 4-cartridge configuration, you will need two 2-packs (4 total cartridges) of the DPFPCC0021M13 for a complete replacement. To install: turn off the pool pump, release the air relief valve, remove the filter tank clamp, lift off the lid, and pull out the old cartridge assembly. Rinse the manifold and tank interior, then insert the new Tier1 cartridges onto the manifold, reseat the top manifold plate, replace the lid and clamp, open the air relief valve, and restart the pump until water flows steadily. Note the starting clean pressure on the gauge as your baseline for future maintenance.