Identifying the correct hot tub filter is essential to maintaining your spa’s performance, water quality, and cleanliness. Filters need to be replaced regularly to ensure your spa stays clean, hygienic, and running efficiently. By gathering this information, you can either use our 'Find My Filter' feature on the website or get in touch with us directly to find a suitable replacement.
Quick Summary: Steps to Identify Your Filter
- Locate Identifying Marks: Look for part numbers or brand names on the filter’s top or side.
- Measure the Diameter: Measure across the widest point and round to the nearest quarter- or eighth-inch.
- Measure the Length: Measure the body from end cap to end cap, excluding handles or threads.
- Identify the Top Style: Check if it has a solid handle, removable handle, open hole, or flat/closed top.
- Inspect the Bottom Style: Determine if the bottom has male threads, female threads, an open hole, or a unique fitting.
- Consult if Unsure: Refer to your spa manual or contact Hydrospares for help with photos and measurements.
1. Locate Identifying Marks
The most straightforward way to identify your filter is by locating part numbers or brand names printed on the top or side. These markings are often included on brands like our own Pure-Spa filters. Once you locate the SKU or markings, you enter it in the search bar on the website to look it up quickly. Alternatively, call our customer support team for assistance in finding the perfect replacement.
2. Measure the Diameter
Use a measuring tape or ruler to measure the widest point of the filter cartridge in millimeters (mm). Record the measurement accurately, as precise dimensions help ensure you select the correct replacement. If you're unsure, round to the nearest whole millimeter for simplicity.
3. Measure the Length
Measure the body length of the filter from end cap to end cap, excluding any protrusions such as handles or threads. Accurate measurements are essential, so record the length in millimeters for the best results. While a ruler works fine, digital calipers offer greater precision if available.
4. Identify the Top Style
Hot tub filters have varying top designs, including solid handles, removable handles, open holes, or flat/closed tops. If the handle is removable, it’s interchangeable with non-removable handles, and inline dosing is optional. This flexibility allows for more replacement options.
5. Inspect the Bottom Style
The bottom style of the filter is crucial and varies widely. Common types include male threads, female threads, open holes, or unique fittings. To differentiate thread styles, observe the spacing of the ridges: coarse threads are spaced further apart, while fine threads are closer together. Identifying this feature ensures compatibility with your hot tub.
6. Still Unsure?
If you’re having trouble identifying your filter, consult your spa’s owner’s manual for compatible models or part numbers. Alternatively contact us directly. Share your filter’s photos and measurements, and our knowledgeable team will guide you to the best replacement.
Conclusion
By following these steps—checking for identifying marks, measuring dimensions, and noting the top and bottom styles—you’ll confidently select the right filter for your hot tub. A properly identified filter not only ensures crystal-clear water but also extends the lifespan of your spa. Remember, if you have any doubts, our support team is here to help. Maintaining your hot tub’s health is worth the effort!
