Unicel 6CH-502 Artesian Spa Filter – 50 Sq Ft | FC-0311

Unicel 6CH-502 Replacement Spa Filter Cartridge — 50 Sq. Ft.

The Unicel 6CH-502 is a premium 50-square-foot replacement hot tub and spa filter cartridge built to deliver effective filtration while maintaining proper water flow through your spa’s filtration system. Its filtration media helps capture dirt, body oils, debris, and other contaminants to keep your spa water clean and clear.

With an approximately 6-3/4-inch outside diameter, 8-inch length, convenient semi-circular top handle, and 2-inch male MPT threaded bottom connection, the 6CH-502 cross-references with Filbur FC-0311 and Pleatco PAS50SV-F2M.

Specifications

• Unicel Part Number: 6CH-502
• Filter Area: 50 sq. ft.
• Outside Diameter: Approximately 6-3/4"
• Length: Approximately 8"
• Pleats: 209
• Filter Media: 3 oz.
• Top: Semi-circular handle for easy removal
• Bottom: 2" male MPT threaded connection
• Made in USA

Key Features

• Genuine Unicel 6CH-502 replacement spa filter
• 50 sq. ft. filtration area for efficient water cleaning
• Approximately 6-3/4" outside diameter
• Approximately 8" length, 209 pleats
• Semi-circular top handle for convenient, tool-free removal
• 2" male MPT threaded bottom connection
• 3 oz. filtration media
• Helps remove dirt, oils, debris, and contaminants
• Designed to maintain efficient spa water flow
• Durable replacement hot tub filter cartridge
• Made in USA

Compatibility — Commonly Used With

• Select Artesian Spas

Cross-Reference / Replacement Part Numbers

Customers searching for the following part numbers may find this filter to be a compatible replacement:

• Unicel: 6CH-502
• Filbur: FC-0311
• Pleatco: PAS50SV-F2M

⚠️ Fitment Notice

Spa manufacturers can change filter configurations between models and production years. Before ordering, please compare your existing filter’s manufacturer part number, outside diameter (~6-3/4"), overall length (~8"), semi-circular handle configuration, and 2" male MPT threaded bottom connection to confirm this is the correct replacement.

Why Buy From Red Rock Spas?

Red Rock Spas supplies premium hot tub filters, replacement spa parts, water-care products, and spa accessories. If you’re not sure whether the Unicel 6CH-502 is the correct replacement filter for your hot tub, our team can help you identify the right filter — just reach out before ordering.