Unicel Replacement Cartridge – 50 sq ft | Model C‑4950
The Unicel C‑4950 is a high-capacity inline spa filter cartridge offering approximately 50 sq ft of pleated media. Designed for Rainbow Dynamic Series, Waterway in‑line systems, and fits many spa brands including Cal, Artesian, Bullfrog, Sundance, Jacuzzi, Maax, and more.
Key Features:
- 50 sq ft of 3 oz Reemay® spunbonded polyester media
- Approximately 212 pleats for enhanced dirt-holding and flow
- Dimensions: 4 15/16″ outer diameter × 13 5/16″ length
- Top and bottom open end caps with 2 1/8″ inner diameter
- Advanced free-flow core design improves circulation and cleaning efficiency
- Compatible cross-references: Pleatco PRB50‑IN, Filbur FC‑2390, plus many OEM models including Unicel C‑4326, C‑4625, C‑4637, etc.
Technical Specifications:
- Model / SKU: C‑4950
- Filtration Area: ~50 sq ft
- Pleat Count: ~212
- Media Weight: 3 oz/yard polyester
- Dimensions: OD 4 15/16″ × Length 13 5/16″
- End Caps: 2 1/8″ open inner diameter top & bottom
- Micron Rating: ~20 µm for fine particle capture
Maintenance Tip: Gently rinse the cartridge with a garden hose—avoid pressure washers. Replace every 6–12 months or sooner if pressure increases or the media shows wear or discoloration.
SKU: C-4950
