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 Unicel Filter Cartridge Replacement C-4321 is designed specifically for use with the Rainbow Leaf Canister Trap R211084K, offering a seamless fit and efficient filtration performance. Crafted with high-quality materials, this replacement cartridge ensures optimal water clarity by trapping debris and contaminants inside the leaf canister, maintaining your pool or spa's pristine condition with ease and reliability.
- Perfect Fit: Specifically designed as a replacement cartridge for the Rainbow Leaf Canister R211084K, ensuring seamless compatibility and hassle-free installation.
- Enhanced Filtration: Crafted with high-quality materials and precision engineering, this cartridge effectively traps debris, dirt, and contaminants to maintain optimal water clarity and quality.
- Consistent Performance: Engineered for reliable and consistent filtration performance, providing peace of mind that your pool or spa water remains clean and inviting.
- Convenient Maintenance: With its user-friendly design, replacing the cartridge is quick and easy, allowing for convenient maintenance without any complications.
Leaf Canister Sold Separately
- Comes With 1 Singular Cartridge C-4321
- Note: Leaf Canister Not Included

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