A white pleated replacement filter cartridge with blue plastic end caps and a central printed label reading 'ProAqua PA-640 Replacement Filter Cartridge' on a plain white background.

47 Sq. Ft. Master Spas Replacement Filter | ProAqua

$105.00
$105.00
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A white pleated replacement filter cartridge with blue plastic end caps and a central printed label reading 'ProAqua PA-640 Replacement Filter Cartridge' on a plain white background.
  • A white pleated replacement filter cartridge with blue plastic end caps and a central printed label reading 'ProAqua PA-640 Replacement Filter Cartridge' on a plain white background.
47 Sq. Ft. Master Spas Replacement Filter | ProAqua

47 Sq. Ft. Master Spas Replacement Filter | ProAqua

$105.00
$105.00

The ProAqua PA-640 replacement filter is designed for compatible Master Spas Twilight Series models from 2009 onward. It replaces Master Spas OEM X268365, Filbur FC-0317 and Pleatco PMA40L-F2M.

This cartridge can also serve as a longer, one-piece alternative for compatible pre-2004 Master Spas Eco-Pur PMA-EP2 systems, replacing both the inner and outer filters with a single cartridge. Master Spas has used different filter sizes across models and years, so compare your existing filter and available space with the measurements below before ordering.

Filter specifications

  • ProAqua model: PA-640.
  • Diameter: 6 inches.
  • Length: 9 inches.
  • Top: closed with a handle.
  • Bottom: 2-inch MPT threaded connection.
  • Filter media area: 47 square feet.
  • Filter media weight: 3 oz.
  • Pleat count: 225.

Compatible replacement references

  • Master Spas OEM X268365.
  • Filbur FC-0317.
  • Pleatco PMA40L-F2M.

Confirm the diameter, length and threaded connection before purchasing. For older two-piece systems, check that the longer single cartridge fits your spa's filter housing.

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