Unicel Replacement Cartridge – 50 sq ft | Model 4CH‑949
The Unicel 4CH‑949 is a high-capacity spa filter cartridge offering approximately 50 sq ft of filtration media. Built to OEM specs for spas by Waterway, Dynasty, Rising Dragon, Cal Spas, Master Spas, and related brands.
Key Features:
- 50 sq ft of premium 3 oz spunbonded polyester (Reemay®) media
- Approximately 210 pleats for outstanding dirt-holding capacity and flow
- Dimensions: ~4 15/16″ outer diameter × ~13 1/2″ length
- Top cap with V‑groove semi-circular handle for easy removal
- Bottom end: 2″ female SAE thread for secure connection
- Filters debris down to ~20 microns while minimizing pressure buildup
Technical Specifications:
- Model / SKU: 4CH‑949
- Filtration Area: ~50 sq ft
- Pleat Count: ~210
- Dimensions: OD ~4 15/16″ × Length ~13 1/2″
- End Caps: Handle top; 2″ FPT bottom
- Media Weight: 3 oz/yard polyester
- Micron Rating: ~20 µm
Maintenance Tip: Rinse gently with a garden hose—avoid pressure washing. Replace every 6–12 months depending on spa usage and condition, or sooner if flow pressure increases or media shows signs of wear.
SKU: 4CH-949
