Pleated Filter (Thread-In) | Medium

The Pleated Filter (Thread-In, Medium) is a 6" × 8" cleanable cartridge filter used in some Coyote and Apollo spas. It's the cleanable, reusable alternative to disposable filters for the medium-format threaded filter intake found on those models.

Why pleated over disposable: A pleated filter is rinsed clean and re-installed instead of being recycled every three months. If you're on well water — which often carries iron, manganese, or higher dissolved solids than municipal water — a pleated filter pays back faster because you can deep-clean it as often as needed without buying a new cartridge. It's also the better choice if you simply prefer cleaning a filter to replacing one.

Will this fit my spa? Yes, if you have a Coyote or Apollo spa with the medium-format (6" × 8") threaded filter intake. It's specifically not the right fit for Arctic Spas built in 2009 or later — those use the larger Arctic-format threaded intake that takes the Pleated Filter 50' Thread-In instead. Not sure which intake you have? Bring your old filter to any of our three Ontario showrooms and we'll match it on the spot.

How to clean it: Rinse the pleats top to bottom with a garden hose every 2-4 weeks. Once a quarter, soak the filter overnight in a filter-cleaning solution like Aqua Finesse Filter Cleaner, then rinse thoroughly. A well-maintained pleated filter typically lasts 12-18 months before the pleats break down and you need a fresh cartridge.

Quick tips:

• Coyote and Apollo are older brand families — parts can be harder to source. Order a spare when you place your order to avoid being caught short next quarter.
• Never use a pressure washer; it shreds the pleats
• If your filter is collapsing or the pleats have gone permanently grey, it's time to replace it