PERFECT FIT: Our hot tub filters are engineered to precisely replace for popular models including C-4326, FC-2375, PRB25-IN, 303909, M-4326, 8172500, R173429, and other compatible models. NOTE: This is a compatible spare part and the manufacturers' names and part numbers have been used for reference purposes only. Grefilt is an independent brand
NSF CERTIFIED: Grefilt hot tub filters replacements with NSF certified safe filter materials ensures that water purity meets strict US standards. Only select quality filters for your family to guarantee the safety, health and happiness of your loved ones
EASY TO MAINTAIN: Simple installation with no special tools required. The spa filters are easy to clean, and we recommend cleaning them every 2 weeks for optimal performance
LONG-LASTING: Built with corrosion-resistant end caps and reinforced polyester fiber, this spa filters replacements for hot tub is designed to withstand the elements, providing long-lasting performance and reliable filtration
