PMA-50P3 (Serial number starting with 24 or lower H2x, Michael Phelps Swim Spas)
For serial number starting with 24 or lower
Master Spas 50 Sq Ft H2X and Michael Phelps Swim Spa Filter - 2006 to Current. Microban Latest Technology Helps Water Cleaner, Enhances Performance And Inhibits The Growth Of Bacteria. Measures 6" Wide X 7 5/8" Tall With A 1 7/8" Outter Diamiter Measurement On The Threaded Bottom. X265010