DAYEAR 4CH-949 Spa Filter Cartridge 50 sq.ft. (2-Pack) – Pleatco PWW50L Fit, Trilobal Dirt-Locking Fabric

DAYEAR 4CH-949 is a 50 sq.ft. replacement spa filter cartridge (two-pack) engineered to fit Pleatco PWW50L and other FC-0172-compatible hot tub systems for reliable debris capture and easy maintenance.

This pair of DAYEAR 4CH-949 spa filter cartridges offers a direct-fit replacement for a wide range of hot tub filter models, combining a large filtration area with reinforced construction. Each cartridge measures 13 1/2" long with a 4 15/16" outside diameter and a 2" female SAE threaded base, delivering 50 square feet of trilobal fabric surface to trap fine particles while resisting common pool chemicals. The design emphasizes longevity and cleanability so you can restore water clarity without frequent cartridge swaps.

How does this filter improve spa water clarity?

DAYEAR uses a trilobal “dirt-locking” fabric that increases particle capture compared with standard pleated media. The larger filtration area and multi-layer bonding trap hair, dust, sand, and sediment, reducing cloudy water and helping your sanitizer work more efficiently.

• 50 sq.ft. filtration area for greater contaminant capture
• Trilobal fiber structure holds more debris between cleanings
• Captures fine particles like dust and sand that generic filters miss

Will this cartridge fit my hot tub model?

This DAYEAR 4CH-949 is made to be compatible with many industry part numbers and fits systems that take Pleatco PWW50L-sized cartridges. It replaces Unicel 4CH-949 and 4CH-926, Filbur FC-0172, SD-01143, Baleen AK-90091 and other equivalent models, but always confirm dimensions and threading before purchasing.

• Length 13 1/2" and outside diameter 4 15/16"
• 2" female SAE threaded bottom for compatible housings
• Cross-referenced to common part numbers for easy replacement

How durable and easy to maintain are these cartridges?

DAYEAR builds these cartridges with fabric 25% thicker than many alternatives and chlorineresistant end caps to prevent premature failure. Tough bonded straps and reinforced materials reduce cracking risk under normal flow rates up to 3000 GPH, and the trilobal fabric releases trapped debris readily during cleaning.

• Thicker pleated fabric and bonded straps for longer life
• Chlorine-resistant top and bottom end caps to withstand chemicals
• Recommended cleaning every two weeks for peak performance

How do I clean and care for these spa filters?

Cleaning is straightforward: remove the cartridge, rinse with a garden hose, and soak periodically in a filter-cleaning solution to remove oils and buildup. DAYEAR’s material sheds dirt more easily than standard media, so cartridges often regain near-new performance after a proper clean.

• Rinse with low-pressure water; soak for deep cleaning as needed
• Remove before draining or using strong bath additives to avoid corrosion
• Replace cartridges when pleats show permanent staining or damage

Who is this for? These DAYEAR 4CH-949 cartridges are aimed at spa and hot tub owners, service technicians, and rental property managers who need a dependable, compatible replacement for FC-0172/PWW50L-type filters. If you want a heavy-duty, easy-to-clean filter with broad cross-compatibility and a two-pack for spare coverage, this product delivers practical value without altering your existing filtration setup.