{"title":"New Zealand Made Magnum Filters Cartridges for Galaxy Spas","description":"","products":[{"product_id":"galaxy-spas-25","title":"NZ Made Magnum Filters Cartridges for Galaxy Spas 25 Coarse Thread with Bayonet","description":"\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eOverview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThese replacement spa filter cartridges are built specifically for Galaxy Spa systems and proudly made in New Zealand by Magnum Filters, trusted in the industry for over 40 years. Durable, easy to fit, and designed to match original specifications, these cartridges help keep your spa water clear and running smoothly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eYou’ve got two compatible options, depending on the connection type of your existing cartridge. The Bayonet Version is by far the most common for Galaxy Spas., but if you have one with a Standard thread, the please click on the link below to be directed to our WY45 Webpage \u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eFilter Options\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eGX25 – Bayonet Thread\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eOutside Diameter\u003c\/span\u003e\u003cspan\u003e: 143 mm\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eLength\u003c\/span\u003e\u003cspan\u003e: 204 mm\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eTop End Cap\u003c\/span\u003e\u003cspan\u003e: ½ round handle (replaces original star handle)\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eBottom End Cap\u003c\/span\u003e\u003cspan\u003e: Male thread with bayonet lock\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eBest for Galaxy Spa models using a bayonet-style fitting\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003e WY45 – Coarse Thread\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eOutside Diameter\u003c\/span\u003e\u003cspan\u003e: 143 mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eLength\u003c\/span\u003e\u003cspan\u003e: 204 mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eTop End Cap\u003c\/span\u003e\u003cspan\u003e: Bar handle (also replaces original star handle)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eBottom End Cap\u003c\/span\u003e\u003cspan\u003e: Male coarse thread\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eSlightly longer than original, but fully compatible\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eUse if your current filter has a screw-in thread, not a bayonet\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eTo order a WY45 please click \u003ca href=\"https:\/\/www.waterfiltersonline.co.nz\/products\/waterway-50-skim-new-type?_pos=1\u0026amp;_sid=2ce4e647b\u0026amp;_ss=r\" title=\"WY45\"\u003eHERE\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eWhy Choose Magnum Filters?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eNZ-made quality, built for local conditions\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eLong-lasting media and strong end caps\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eReliable performance in Galaxy Spa systems\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e\n\u003cp role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eEasy to install and replace\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eFAQs\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003e1. How do I know if I need a GX25 or a WY45 filter?\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e Check the bottom end of your existing filter. If it locks in with a bayonet-style twist, go with GX25. If it screws in with coarse threading, choose WY45.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003e2. Are these genuine Magnum filters?\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e Yes, both GX25 and WY45 are made in New Zealand by Magnum Filters, a trusted spa filter manufacturer for over 40 years.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003e3. Can I use the Galaxy Spa Filter Cartridges in other spa brands?\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e These are designed specifically for Galaxy Spas. They may fit other models with the same specs, but it’s best to confirm dimensions and thread type before purchasing.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003e4. How often should I replace my spa filter cartridge?\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e Typically, every 12 months, or sooner if water clarity drops or flow is restricted. Regular rinsing helps extend the life between replacements.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003e5. What if my current filter has a star-shaped handle?\u003c\/strong\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e No worries—these replacements come with round or bar handles but are still fully compatible with the original star handle models.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 class=\"manufacturers\"\u003e\u003cbr\u003e\u003c\/h2\u003e","brand":"Compatible with Galaxy Pools","offers":[{"title":"Coarse Thread with Bayonet","offer_id":41226326605961,"sku":"GX25","price":42.83,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/7633\/1145\/files\/a706c3fd-cb70-422e-bcb7-03101f130832.png?v=1765052966"},{"product_id":"waterway-50-skim-new-type","title":"Waterway 50 Skim (Fits Trueform and many more)","description":"\u003cp\u003e\n  The WY45 is one of the most widely used spa filter cartridges in New Zealand, commonly fitted to Waterway 50 skim systems and a wide range of spa brands. This genuine Magnum filter is made in NZ and designed to handle regular spa use while keeping water clear and flow steady.\n\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eGenuine Magnum WY45 cartridge made in New Zealand\u003c\/li\u003e\n  \u003cli\u003eWidely used across multiple spa brands and models\u003c\/li\u003e\n  \u003cli\u003ePleated media for strong dirt holding capacity\u003c\/li\u003e\n  \u003cli\u003eDesigned to maintain water clarity and flow\u003c\/li\u003e\n  \u003cli\u003eDurable construction for repeated cleaning cycles\u003c\/li\u003e\n  \u003cli\u003eMulti-buy discount available for easier replacement planning\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Note\u003c\/h3\u003e\n\u003cp\u003e\n  If the cartridge does not clearly show Magnum Filters, WY45, Made in New Zealand on the cap, it is not a genuine NZ-made Magnum WY45. This model is a unique Magnum product, so checking this matters when replacing.\n\u003c\/p\u003e\n\n\u003ch3\u003eWhere It’s Used\u003c\/h3\u003e\n\u003cp\u003e\n  Used in spa systems with Waterway 50 skim setups and similar configurations. Common across residential spas where consistent filtration and easy replacement are needed.\n\u003c\/p\u003e\n\n\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp\u003e\n  Suitable replacement for a wide range of spa brands and models including:\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSignature Spas\u003c\/li\u003e\n  \u003cli\u003eSpa Industries\u003c\/li\u003e\n  \u003cli\u003eSpa-Quip wide mouth skim systems\u003c\/li\u003e\n  \u003cli\u003eTrueform Spas\u003c\/li\u003e\n  \u003cli\u003eAlpine Spas\u003c\/li\u003e\n  \u003cli\u003eCyclone Spas\u003c\/li\u003e\n  \u003cli\u003ePacific Spas\u003c\/li\u003e\n  \u003cli\u003eGalaxy Spas\u003c\/li\u003e\n  \u003cli\u003eVortex and O2 models\u003c\/li\u003e\n  \u003cli\u003eOasis, Orbit, Gemini, Alpha, Meridian\u003c\/li\u003e\n  \u003cli\u003eJet Spas range and other compatible systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\n  Also used in various imported and aftermarket spa models with matching dimensions and thread type.\n\u003c\/p\u003e\n\n\u003ch3\u003eDimensions\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOutside Diameter:\u003c\/strong\u003e 150mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 204mm (can replace some 220mm cartridges)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTop:\u003c\/strong\u003e Bar handle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBottom:\u003c\/strong\u003e 46mm SAE coarse thread\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow It Works\u003c\/h3\u003e\n\u003cp\u003e\n  Water is drawn through the pleated filter media, trapping debris like dirt, oils, and fine particles. This keeps the water cleaner and reduces load on the rest of the system.\n\u003c\/p\u003e\n\n\u003ch3\u003ePro Tip\u003c\/h3\u003e\n\u003cp\u003e\n  Buying two filters and rotating them during cleaning helps extend overall life. While one dries out fully, the other keeps the spa running.\n\u003c\/p\u003e\n\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\n\u003cp\u003e\u003cstrong\u003e1. Is this a genuine Magnum WY45 filter?\u003c\/strong\u003e\u003cbr\u003e\nYes, this is a NZ-made Magnum WY45. Check the cap marking to confirm authenticity.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e2. Will this fit my spa?\u003c\/strong\u003e\u003cbr\u003e\nIt fits a wide range of spas using Waterway 50 skim systems, but always confirm size and thread type before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e3. Why is the WY45 so common in NZ?\u003c\/strong\u003e\u003cbr\u003e\nIt suits many spa brands and has become a standard replacement size across different models.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e4. How often should I replace this filter?\u003c\/strong\u003e\u003cbr\u003e\nMost spa filters are replaced every 12 months, depending on usage and water quality.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e5. Can I clean and reuse the cartridge?\u003c\/strong\u003e\u003cbr\u003e\nYes. Regular rinsing will extend its life, but it should be replaced once performance drops.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e6. Why is my water cloudy even after cleaning?\u003c\/strong\u003e\u003cbr\u003e\nIf cleaning does not help, the filter media is likely worn out and no longer trapping fine particles properly.\u003c\/p\u003e","brand":"Heritage Spas","offers":[{"title":"Default Title","offer_id":40528271704201,"sku":"WY45","price":62.61,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0584\/7633\/1145\/files\/fc8ecdf8-15fe-4411-9a82-0c535d2fde0a.jpg?v=1765155516"}],"url":"https:\/\/www.waterfiltersonline.co.nz\/collections\/galaxy-spa-filters.oembed","provider":"Water Filters Online Aotearoa","version":"1.0","type":"link"}