Description
Overview
These NZ-made Magnum C90 spa filter cartridges are supplied as a matched set of two and are built to suit Oasis Spas and selected Leisurerite pool and spa setups. They are commonly used where the skimmer box moulding is slightly warped or tight, making taller cartridges like the LR100 a poor fit. If you have had issues getting standard filters to seat properly, this model is often the safer option.
Made locally for New Zealand spa conditions, these cartridges are designed for steady flow, reliable filtration, and regular spa use without fuss.
Where They Fit
These filters are suitable for Oasis Spas and some Leisurerite Pools models, particularly systems with warped or shallow skimmer boxes. They may also suit certain imported spas where space is limited and standard cartridges sit too high.
If you are unsure, checking the physical measurements against your existing filter is the best way to confirm fit.
Key Specifications
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Outside diameter: 143 mm
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Length: 387 mm
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Top end: Handle
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Bottom end: 49 mm coarse thread
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Supplied as a set of two cartridges
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Manufactured in New Zealand
Why Choose Magnum Filters
Magnum filters are known locally for consistent build quality and dependable performance. The media is designed to trap fine debris without choking flow, which helps keep pumps running smoothly and water clearer between cleans. Being NZ made also means they are built with local spa usage and water conditions in mind.
Installation Notes
Installation is straightforward. Remove the old cartridges, clean the housing, and screw the new filters into place by hand. Do not overtighten. Once installed, run the system briefly and check for proper seating and flow.
Regular rinsing and periodic deep cleaning will help extend cartridge life and maintain water quality.
FAQs
Are these filters sold individually or as a pair?
They are supplied as a set of two cartridges.
Will these fit all Oasis Spas?
They fit many Oasis Spa models, but skimmer box designs can vary. Always check the measurements before ordering.
Why would I choose this over an LR100 filter?
This model is shorter and often fits better where the LR100 is too tall or does not seat properly due to moulding variations.
How often should I clean these cartridges?
Light rinsing every few weeks is recommended, with a deeper clean as needed depending on usage.
Are these filters made in New Zealand?
Yes. These Magnum cartridges are manufactured in New Zealand.