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.
The Pentair FNS Plus filter wing nut is a crucial component crafted from durable stainless steel, engineered to securely fasten to the tie rod within your Pentair FNS Plus DE Filter Tank. Designed for easy replacement when worn or stripped, this wing nut ensures a tight seal, optimizing the performance and longevity of your filtration system.
- Durable Stainless Steel Build: Constructed from .25-20 stainless steel for long-lasting performance and corrosion resistance.
- Effortless Replacement: Designed for easy installation onto the tie rod inside the Pentair FNS Plus DE Filter Tank, simplifying maintenance.
- Enhanced Filtration Efficiency: Ensures a tight seal to optimize filtration performance, providing clean and clear water for your pool or spa.

