If you own an inflatable hot tub, you know how important it is to keep the water clean and fresh. One of the most essential components in achieving this is the hot tub filter. Filters trap dirt, debris, and other contaminants, keeping the water safe and extending the life of your tub. But over time, these filters wear out and need to be replaced. Choosing the right replacement filter may seem confusing at first, but with the right guidance, it’s easier than you think. Here’s how to find the perfect replacement filter for your inflatable hot tub.

1. Check Your Hot Tub’s Brand and Model

The first step is to identify the brand and model of your inflatable hot tub. This information can usually be found on a label attached to the tub or in the owner’s manual. Different brands, such as Intex, Coleman, or Bestway, often require specific filter cartridges that are not interchangeable. Knowing your exact model number helps ensure you purchase a compatible filter.

2. Look at the Filter Code or Number

Most filters have a part number or code printed directly on the cartridge. This alphanumeric code (e.g., "Type VI" for Bestway or "S1" for Intex) identifies the exact type of filter your hot tub uses. When shopping for a replacement, match this code with the one listed on the product packaging or online listing. If the original filter no longer has a readable label, refer to the manual or look up your model online.

3. Measure the Filter

If you’re unable to find a filter code, measuring your current filter can help. Key measurements include:

• Height

• Diameter

• Hole size (top and bottom)

Using a ruler or measuring tape, get as close to the actual dimensions as possible. Then compare those measurements to replacement options available online or in stores. This method is especially helpful if you're trying to find a compatible third-party filter.

4. Choose OEM vs. Compatible Brands

You’ll find two main types of replacement filters:

• OEM (Original Equipment Manufacturer): These are made by the same company that made your hot tub and are guaranteed to fit and perform well.

• Compatible/Aftermarket: These filters are made by third-party companies but are designed to fit certain brands or models. They’re often more affordable and still provide reliable performance, but it’s important to double-check compatibility.

5. Consider Multi-Pack Deals

Filters should typically be replaced every 2 to 4 weeks depending on usage and water quality. Because of this, many hot tub owners find it cost-effective to purchase multi-pack deals. Not only do they save money, but they ensure you always have a spare on hand.

6. Buy From a Trusted Retailer

Whether you're shopping online or in a physical store, buy from reputable retailers. Look for reviews, return policies, and clear compatibility information. Avoid unbranded or unclear listings that don’t provide the filter size or model number.

Conclusion

Finding the right replacement filter for your inflatable hot tub doesn’t have to be a hassle. By knowing your hot tub model, checking for a filter code, and comparing measurements, you can confidently choose the right filter and keep your spa in top condition. Regular filter maintenance is key to enjoying clean, soothing water every time you step in.