🛡️ Unicel 4CH-949AM Anti-Microbial Filter Cartridge – Arctic Spas 2009-2019 & 2020+ Classic, Core Series

Keep your spa water crystal clear and your equipment running smoothly with the Unicel 4CH-949AM Anti-Microbial Filter Cartridge. Specially engineered for Arctic Spas Classic and Core Series (2009+), this premium 50 sq. ft. filter also fits select Dynasty, Waterway, and Rising Dragon spa models.

• 🌊 Superior Filtration – 50 sq. ft. high-quality media for longer filter cycles and fewer cleanings
• 🦠 Anti-Microbial Protection – Blue pleats signal advanced media that resists bacteria and mold between cleanings
• 🔄 Easy Replacement – 2" FPT female thread for quick, tool-free installation
• 🔩 Reliable Fit – Designed for Arctic Spas Classic/Core Series, also fits select Dynasty, Waterway, and Rising Dragon models

📏 Specifications

• Outer Diameter: 4-15/16"
• Length: 13-1/2"
• Connection: 2" FPT
• Filtration Area: 50 sq. ft.

🔁 Compatible Replacements

• Unicel 4CH-949
• Pleatco PWW50L, PWW50L-M
• Filbur FC-0172, FC-0172M
• Arctic Pure 20032
• Other brands with matching specs

🛠️ Installation & Care

• Power off spa before servicing
• Remove old filter, inspect housing for debris
• Screw in new cartridge hand-tight – do not overtighten
• Rinse filter with hose weekly and deep clean with filter cleaner every 1–3 months
• Replace cartridge when pleats are damaged or water flow is restricted

♻️ Maintenance Tips

• For heavy use, rotate two filters for continuous clean water
• Anti-microbial media adds protection but does not replace regular cleaning

Double-check your filter’s length, diameter, and thread type before purchase for best fit. Need help? Contact us with your model and specs for expert support.

Fits Arctic Spa Classic/Core Series (2009+), Dynasty Spas, Waterway, and Rising Dragon. 4CH-949AM features blue pleats. (Image shows standard and AM version for comparison.)