Vortex Spas Threaded Filter suits earlier Vortex Spas. Set of 3 filters (complete set to suit Vortex Spas)
Bottom: threaded (fine thread)
Be sure to check your existing filters are threaded and not camlock. Current model Vortex spas use camlock filter opposed to these threaded filters.
Please contact us for help selecting the correct filter size for your spa.