6CH-940 45SQ.FT Unicel Filter

Unicel 6CH-940 Replacement Spa Filter Cartridge

Keep your hot tub water clean and clear with the Unicel 6CH-940 replacement spa filter cartridge. This popular threaded spa filter is designed for hot tubs using a 6-inch diameter cartridge with a 1-1/2-inch SAE threaded connection.

The Unicel 6CH-940 uses premium 3 oz. filtration media engineered for excellent dirt-holding capacity, water flow, durability, and repeated cleaning. Its semi-circular top handle makes removal easy, while the injection-molded SAE threaded connection provides a secure fit.

The 6CH-940 is used across numerous spa manufacturers and filtration systems, making it an excellent replacement for several common OEM and aftermarket filter numbers.

Key Features

• Genuine Unicel 6CH-940 replacement cartridge
• Premium 3 oz. filter media
• 6-inch outside diameter
• 8-1/4-inch length
• Semi-circular top handle
• 1-1/2-inch SAE male threaded connection
• Designed for excellent water flow and debris capture
• Durable construction for repeated cleaning
• Compatible with numerous hot tub brands and filtration systems

Specifications

Manufacturer: Unicel
Part Number: 6CH-940
Filter Area: 45 sq. ft. per current Unicel application guide
Outside Diameter: 6"
Length: 8-1/4"
Top: Semi-Circular Handle
Bottom: 1-1/2" SAE Male Thread
Filter Media: 3 oz. Polyester

Cross References

The Unicel 6CH-940 cross-references with several popular replacement filters:

• Unicel: 6CH-940
• Pleatco: PWW50P3
• Filbur: FC-0359
• Waterway: 817-0050
• Aber: 03FIL1400
• CMP: 25252
• Darlly: 60401
• Other references include 378902 and PWW50.

Compatible Spa Brands

This filter or its equivalents are used in filtration systems found in numerous spa brands, including Bullfrog Spas, Master Spas, Dynasty Spas, Catalina Spas, Clearwater Spas, Leisure Bay, Sunrise Spas, Tuff Spas, Viking Spas, Vita Spas, and others. Fitment can vary by model and year.

Always verify the part number, 6" diameter, 8-1/4" length and 1-1/2" SAE threaded connection against your existing filter before ordering.

Why Buy From Red Rock Spas?

Red Rock Spas carries premium replacement hot tub filters, spa parts, water-care products and accessories. If you're unsure which replacement cartridge your hot tub requires, our experienced team can help identify the correct filter.