If your Marquis spa filter needs replacing, the right cartridge makes the difference between clean, clear water and a system working harder than it should. A degraded filter reduces flow, strains the pump, and lets fine particles through that a fresh cartridge would catch.
The Magnum Marquis / Cal Spas 50 is the NZ made replacement filter cartridge for Marquis Spas and Cal Spas models. Manufactured locally by Magnum Filters to match the original housing dimensions at 317mm x 132mm, it fits without modification and performs to the same standard as the factory original. Magnum Filters has been making quality pool and spa filter cartridges in New Zealand for over 40 years, so you are getting a locally made product from a trusted manufacturer rather than a generic import.
Before ordering, check the dimensions of your existing Marquis spa filter cartridge to confirm the fit. If you are unsure about compatibility, get in touch via chat or email and the team will help you confirm the right match.
