6CH-940 Spa Filter - Replaces Unicel, Pleatco PWW50P3, Filbur FC-0359, Aber 03FIL1400, Aladdin 14510, Waterway 817-0050 | SAE Thread

6CH-940 Pool & Spa Filter

Key Features

• Filtration Area: 45 sq. ft.
• Media: Spun-bonded polyester pleated fabric
• Media property: Inhibits the growth of bacteria and mold
• Outside Diameter: 6 inches
• Length: 8 1/4 inches
• Top: Closed with handle
• Bottom: 1 1/2 inch SAE threaded connection

Replaces / Cross-Reference Part Numbers

• 6CH-940
• PWW50P3
• FC-0359
• 817-0050
• 25252
• 378902
• 03FIL1400
• 60401

Compatibility & Fitment

Designed for use in spas and hot tubs from manufacturers including Waterway, Vita Spas, and Master Spas. Always verify dimensions against your existing filter cartridge before ordering.

When to Replace

• Water flow from jets is noticeably reduced.
• Pressure gauge on the filter system reads 8-10 PSI higher than its clean starting pressure.
• Cartridge pleats are collapsed, frayed, or damaged.
• End caps are cracked or brittle.
• The filter requires excessively frequent cleaning.

Installation Tips

1. Turn off all power to the spa pump.
2. Unscrew the filter housing lid and remove the old filter cartridge.
3. Clean any debris from the housing and threads.
4. Insert the new 6CH-940 filter and thread it into place.
5. Hand-tighten only; do not over-tighten.
6. Replace the housing lid and restore power to the pump.
7. Bleed any trapped air from the system using the air relief valve.