Trueform Magnum Replacement Spa Filter
Keep your spa water crystal clear and running smoothly.
This high-quality, washable spa filter is designed for Trueform spas and is also compatible with a wide range of other spa brands. Built to withstand powerful jets and regular use, it’s a cost-effective replacement filter that ensures your spa stays clean, hygienic, and performing at its best.
For best results, we recommend keeping two sets of filters and alternating them monthly or bimonthly depending on usage. This routine will help keep your spa sanitised, safe, and always ready to enjoy.
Specifications
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Diameter: 143 mm
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Height: 227 mm
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Top / Bottom: 53 mm hole
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Type: Washable spa filter
Compatibility
Trueform Spas
- Pre-2017: SQ50 (does not screw in)
- 2018 onwards: WY45 (screws in)
Also suitable for many other brands including:
- Leisurerite
- Rotoform
- And more…
✅ A durable, versatile Magnum Spa Filter that keeps your spa water clear and your system protected – the perfect choice for Trueform and many other spa pool brands.

About Trueform
Trueform Spas are New Zealand made, and have been operating for over 35 Years.
Trueform spas are made with the highest quality New Zealand-made materials, parts, and products. All spas have fibreglass-reinforced acrylic shells, powerful pumps, heater and filtration systems, high-density foam insulation, a sophisticated digital control pad and hardwearing cedar cladding.
The spa pools come with a five-year manufacturing defects warranty, and a two-year pump and heater warranty. As Trueform spa pools are manufactured locally, any necessary parts for repair can be undertaken promptly.
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