Hot Tub Filter Replacement for Hot Springs Limelight 2018+ (2 Pack), Replaces Watkins 78161 78286 1642301-1, Pleatco PWK35B, Filbur FC-3921, Unicel C-6350, 14" × 6-3/8" 2" Open Ends

Specifications

• Designed for Hot Springs Limelight – Replacement spa filter cartridge made for Hot Spring Limelight 2018 and newer models, including Pulse, Flair, Flash, Beam, and Prism, ensuring strong water flow and clear spa water.
• Cross-Compatible with Leading Models – Works as a reliable replacement for Watkins part numbers 78161, 78286, 1642301-1, and aftermarket equivalents Pleatco PWK35B, Filbur FC-3921, and Unicel C-6350.
• Accurate Dimensions for a Secure Fit – Measures 14" length × 6-3/8" diameter × 2" open ends (top & bottom). Built with ±0.1" tolerance for precise, leak-free installation.
• Durable & Washable Media – Constructed with high-density trilobal polyester, reinforced PVC core, and bonded end caps. Washable and reusable for multiple cleaning cycles, providing 6–12 months of service life under normal spa use.
• Verify Before Purchase – This cartridge is for 2" open-end filters (PWK35B family) only. It will not fit threaded filters such as PWW50L (fine thread) or PWW50P3 (coarse thread), and is different from ceramic Tri-X filters (Watkins 78372). Please confirm dimensions and connection type before ordering.