Find your parts diagram
Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
Still not sure? Call (818) 818-6559 and we'll find it for you.
DPM-4950 Cartridge For Pentair Dynamic Series IV | 50 Sq Ft | R173434 | C-4950
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CA P65 Warning: Cancer and reproductive harm. www.p65warnings.ca.gov
The DPM-4950 Cartridge is a USA-made replacement filter designed for Pentair Dynamic Series IV models DFM 50 and DFML 50, offering high-performance 50 square foot filtration. This 2-pack set matches the dimensions of C-4950, R173434, and FC-2390, with each pleated cartridge measuring 13 5/16 inches in height, 4 15/16 inches in outer diameter, and 2 1/8 inches in inner diameter. Built with a heavy-duty reinforced core for structural integrity, these filters are engineered for durability and reliable use under demanding pool conditions. The chemical-resistant synthetic media provides efficient and thorough water filtration, helping to maintain safe, crystal-clear water. An ideal replacement for worn or clogged cartridges, this filter set meets or exceeds OEM performance to keep your pool running clean.
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Engineered for Pentair Systems: Compatible with Pentair Dynamic Series IV models DFM 50 and DFML 50, replacing C-4950, R173434, and FC-2390.
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Reliable USA-Made Quality: Manufactured domestically with durable materials and a reinforced core for dependable performance.
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High-Capacity 50 Sq Ft Filtration: Each cartridge delivers 50 square feet of filtration area to capture fine debris and improve water clarity.
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Exact Replacement Dimensions: Each filter measures 13 5/16" high, 4 15/16" in outer diameter, and 2 1/8" inner diameter for easy installation.
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Chemical-Resistant Media: Built with tough synthetic pleats to withstand harsh pool chemicals and demanding operating conditions.
- Pentair Dynamic Series IV Filter Models: DFM 50 and DFML 50
- C-4950
- R173434
- FC-2390