Replacement Catalina Spas cartridge filters. Master Series M40352 hot tub filter replacement for Pleatco PRB17.5SF-PAIR, Unicel C-44. Master Series M40505 hot tub filter replacement for Pleatco PRB25SF-PAIR, Unicel C-4405. Catalina Spas replacement pillows available and stocked for many of them. Catalina Spas pillows available in different sizes for the different hot tub models in Canada. Our friendly and knowledgeable team of hot tub parts experts are here too. Browse our large selection of hot tub filters from Pleatco, Unicel, and Filbur for most hot. Select your Catalina Spas replacement filter by size or part number from. Our friendly and knowledgeable team of hot tub parts experts are here to help. Welcome to Catalina Spas Factory Outlet. We carry a complete line of all Catalina Spa parts. We also carry some generic parts that are adaptable for spas from. Replacement Catalina Spas Parts listed are Generic parts from same part manufacture. Others are Replacements that will work as well or better. At Canada, Hot Tub Parts were focused on the value which is why our spa filter cartridges are built better to last longer. The strongest reinforced PVC center cores for. Hot Tub Outpost carries replacement spa parts for all the models in the Catalina Spas lineup. We also ship to Europe and Canada. Can’t find the part you are. Hot Tub Covers Canada is a Catalina Spas replacement hot tub cover specialist, Catalina Spashand builds beautiful spas that will last for many years. 100 percent Canadian made hot tub parts; How to measure for a replacement hot tub.