MasterSpa (H2X & MPL Swim Spas) Swim Spa - Optimal Dimensions:*Measures 4-15/16 inches

- Optimal Dimensions:*Measures 4-15/16 inches in diameter and 13-1/2 inches in length

providing consistent and long-lasting sanitation to keep your water inviting and hygienic

and other water systems

distribute Spa Life Cal evenly over the surface of the water with the spa circulation system running

- Easy Handling: Comes with a convenient handle at the top for ease of installation and removal

MasterSpa (H2X & MPL Swim Spas) Swim Spa - Optimal Dimensions:*Measures 4-15/16 inchesThe Pleatco H2X Trainer & Michael Phelps filter PMA R4, germs and microbes are greatly reduced. Original Equipment Master Spas Filter Cartridge. The Swim Spa Outer Filter used on all H2X Swim Spas and Michael Phelps Signature Swim Spas by Master Spas from 2017 to current. Master Spas Part#: X268549 Pleastco Part #: PMA R4 Diameter: 6. 0 inches (15. 24 cm) Length: 7. 25 inches (18. 415 cm) Total Length (including top and bottom): 9. 0 inches (22. 86