BLUEFLO Spa Filter Cartridge Replacement — 2-Pack 1.5in Coarse-Thread, 45 sq ft Pleated Trilobal

BLUEFLO replacement spa filter cartridges are drop-in compatible replacements for Unicel 6CH-940, Filbur FC-0359 and similar models, delivering improved debris capture and easy cleaning for your Viking spa or hot tub.

Swap in this 2-pack of BLUEFLO spa filter cartridges to restore circulation and filtration in spas that use 1.5" coarse-threaded filters. Each cartridge measures 8.25" long with a 6" outside diameter and a bottom 1.5" SAE thread, matching common OEM designs for Front Access and standard canister housings. The pleated trilobal fabric increases surface area for better particle removal, while the molded ABS center core and NSF-tested media ensure structural durability and safe materials for spa water systems.

How will these BLUEFLO cartridges affect water clarity?

These filters trap common spa contaminants such as hair, leaves, dust, sediment and fine sand, helping your circulation system run more effectively so sanitizers work as intended. The pleated trilobal fabric and 45 sq. ft. nominal filtration area capture more debris between cleanings compared with older or degraded cartridges.

• 45 square feet of pleated media for greater dirt-holding capacity
• Trilobal fiber structure improves particle entrapment
• Designed for coarse 1.5" threaded housings found in many spas
• Reusable—rinse off with a hose to remove trapped debris

Which spa models and OEM part numbers are these compatible with?

The BLUEFLO BF-C002 is manufactured to match the dimensions and thread type of multiple OEM part numbers so it fits as a direct replacement in many systems. It lists compatibility with commonly used cartridges, making it a practical spare for owners of Viking and other hot tub brands that use the same geometry.

• Compatible with Unicel 6CH-940 and Filbur FC-0359
• Also fits Waterway 817-0050 Front Access and PWW50P3
• Interchangeable with Aladdin 14510, Baleen AK-9019, Pure N Clean PC-0359
• Works with Magnum WY45 and Rec Factory Warehouse 378902 models

How long will each cartridge last and how do I maintain it?

Longevity depends on usage patterns, bather load and water chemistry, but consistency in rinsing and periodic deep cleaning extends service life. The ABS injection-molded center core resists collapse and the polyester media can be cleaned with a simple hose or filter cleaner for repeated reuse.

• Rinse weekly or when flow decreases to remove surface debris
• Use a filter cleaner monthly for oils and mineral buildup
• Inspect for tears or crushed pleats; replace if damaged
• Keep a 2-pack on hand to swap during cleaning cycles

Is this filter made from safe materials and how does it install?

BLUEFLO uses NSF-tested filter media and a sturdy ABS core to meet safety and durability expectations for spa filtration components. Installation is straightforward: remove the old cartridge, check the o-ring or base fitting, then thread the BLUEFLO cartridge into the 1.5" coarse-threaded housing until snug—no special tools required.

• NSF-tested filter media for material safety assurance
• ABS injection-molded center core provides strength and flow
• Top semi-circular handle makes removal and insertion simple
• Fits standard 1.5" SAE coarse-thread housings used by many spas

Who this is for: Spa owners who need a reliable, cost-effective replacement for worn or clogged cartridges in Viking and other compatible hot tubs. Ideal for households that prefer reusable filters with easy maintenance and for service professionals who stock parts matching common OEM numbers. If you want to restore flow, maintain clearer water, and reduce the frequency of deep cleanings, this BLUEFLO two-pack offers an accessible, NSF-tested option.