40 sq. ft. compatible replacement spa cartridge filter model AK-70022

• Diameter: 8 Inch
• Length: 6 3/4"
• Bottom: 4-1/16"
• Top: 4-1/16"

This is the RJ Filtration brand replacement spa filter model AK-70022 that is compatible with PMA40-2003-R.  Also compatible with models C8341 and FC1007.

This filter type is found in Master Spas, Down East hot tub filter assemblies and hot tubs. Replace your spa cartridge filters annually and rinse, clean them per manufacturer's instructions .