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 36 square feet FNS Plus filter lid assembly is a vital component designed to ensure optimal filtration performance for your pool or spa. Crafted with precision, this assembly provides sturdy support and efficient water flow management. Made by Pentair, this OEM replacement part ensures reliability and longevity, allowing your filter system to work effectively and efficiently.
- OEM Replacement: This replacement tank lid is designed to be an exact fit for the Pentair FNS Plus 36 Sq. ft filter, ensuring compatibility and ease of installation.
- Cost-Saving Upgrade: Save on costly repairs and potential water damage by investing in this durable replacement part, engineered for longevity and reliability, providing peace of mind and financial savings.
- Simple Installation: Designed for easy replacement, both pool owners and professionals will find it straightforward to install, saving time and effort.
- Durable Build: Crafted from high-quality materials, it's built to withstand the demands of pool filtration, providing long-lasting performance.
- Pentair 36 sq. ft FNS Plus Filters: 180007

