Replace Rainbow pool and spa filters with the Unicel C-4950 Replacement Filter Cartridge. Shasta Pool Supply offers largest discounts on replacement cartridge filters. Specifically, this cartridge fits Bullfrog Spas, Dynasty Spas, Waterway, and more.
Replacement Filter Cartridge Unicel C-4950
Unicel is renowned for its high-quality filter cartridges, backed by over 45 years of manufacturing expertise. Furthermore, the C-4950 replacement cartridge meets OEM specifications. Therefore, it ensures a perfect fit and seal.



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Key Features
- Efficient Filtration: With 50 square feet of filtration area and the ability to capture debris as small as 20 microns, this cartridge enhances your water quality, providing a refreshing experience.
- Enhanced Water Flow: Featuring sharp, uniform pleat folds, the C-4950 maximizes water flow while minimizing pressure loss, ensuring your system runs efficiently.
- Durable Construction: Made from 100% polyester Reemay material, this filter combines excellent dirt-holding capacity with durability and chemical resistance for long-lasting use.
- Easy Installation: The end cap design allows for a quick and hassle-free cartridge replacement, so you can spend more time enjoying your spa and less time maintaining it.
- Versatile Compatibility: Compatible with a wide range of spas and pool systems including Bullfrog Spas, Cal Spas, and Jacuzzi Premium, making it a versatile choice for various setups.
Specs
- Part Number: C-4950
- Manufacturer: Unicel
- Length: 13.5
- Width: 5.0
- Height: 5.0
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Mushroom Propane Patio Heater SIH01-HB | SI 87" Tall Hammered Bronze w/ Pilot
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What our customers are saying
Our pool water is very clear. I wasn't really expecting this from the Shasta Pure unit... I feel like our pool is more clear looking, its kinds like swimming in drinking water...
Our pool water is very clear. I wasn't really expecting this from the Shasta Pure unit... I feel like our pool is more clear looking, its kinds like swimming in drinking water...
Erin A.
Shopping with Shasta was an excellent experience. I followed a link from an email from Shasta for a salt cell for my pool, which I needed. They advertised an open box deal which was hundres of dollars less expensive than anywhere else I could find the equivalent part for online.
I accidentlh placed an order for the part to pick up at the wrong location. Communicating through email, Zachary and Chuck quickly resolved the problem and changed the location to the location closer to my home.
I've also shopped for pool deck paint from Shasta. Not only was the price better than anywhere else I could find online, the product was available quickly from my store.
Shopping with Shasta was an excellent experience. I followed a link from an email from Shasta for a salt cell for my pool, which I needed. They advertised an open box deal which was hundres of dollars less expensive than anywhere else I could find the equivalent part for online.
I accidentlh placed an order for the part to pick up at the wrong location. Communicating through email, Zachary and Chuck quickly resolved the problem and changed the location to the location closer to my home.
I've also shopped for pool deck paint from Shasta. Not only was the price better than anywhere else I could find online, the product was available quickly from my store.
GLENN S
Chuck was amazing as always. He provided me with the spa chemicals I needed at a great price!
Chuck was amazing as always. He provided me with the spa chemicals I needed at a great price!
Suzanne E
FAQ
Our expert staff answers customer's most asked questions.
Can you add pool automation to an existing pool?
Absolutely, pool automation systems can be easily added to existing pools. You can start with a basic system that controls your filter and pump. Eventually, upgrade to include features like lighting and water features as needed.
Are there any specific considerations for saltwater pools?
Yes, saltwater pools require pumps that are compatible with saltwater systems. Look for pumps made from corrosion-resistant materials to ensure longevity and efficiency in saltwater environments.
How frequently should I clean my filter cartridges?
The cleaning frequency is contingent on your filter's size. As a general guideline, initiate the cleaning process when the filter pressure exceeds the initial pressure by 10 psi. This ensures optimal filtration efficiency.
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