🧖♂️ Dive into relaxation with effortless filtration! Designed specifically for Sundance Spas 850 & 780 Series for seamless integration. Experience crystal-clear water with our high-efficiency filtration. Disposable design means no cleaning—just swap it out and relax. Compatible with Filbur # FC-2812 and Pleatco # PPS750 for peace of mind. Forget the hassle—replace every 3-4 months for optimal performance. 8.5" Diameter 3-4 months lifespan Compatible with Sundance Spas The Spa & Sauna Parts Compatible Replacement Filter is a high-quality disposable filter designed for Sundance Spas 850 & 780 Series. With an 8.5" diameter, it ensures optimal water clarity and should be replaced every 3-4 months for best results. Compatible with Filbur # FC-2812 and Pleatco # PPS750, this filter offers a hassle-free solution for spa maintenance.