A filter is a filter, right? It’s just something you replace when it gets clogged. Unfortunately, that’s not what happens in most hot tubs.

In the majority of hot tubs, the filter is one piece with other components and must be replaced as a whole unit.

But don’t worry! This article will teach you everything you need to know about locating your filter part number and replacing it so that your spa can start working properly again.

How To Find Your Hot Tub Filter Replacement

With more than 300 sizes of hot tub filters available, you may be wondering how to find your exact replacement. Unfortunately, there’s no one-size-fits-all replacement hot tub filter.

The replacement guidelines can be easily looked up from the manufacturer of your specific make and model of spa and a filter usually looks like a cylinder with or without an attached hose (although some manufacturers package their filters as self-contained units).

Your replacement filter can be found by several different methods:

1. A replacement hot tub filter will be displayed on the side of your cabinet next to your spa’s pump motor and labeled with its specific replacement part number; sometimes it is easier to read from below (if you look in between the grille and bottom of the cabinet).

2. Another way to find your replacement filter is to look at the old filter read off the replacement part number from there.

3. The part number can also be found on a sticker near the replacement hot tub filter size you need located along the inside wall of your tub’s storage compartment or lift station (if applicable).

If you still can’t find the part number you can measure the current hot tub filter. Take a tape measure and write down it’s size by length and width and look it up online.

If you still can’t find the specific replacement part number, contact customer service for the manufacturer of your hot tub brand or just tell them your measurements and they will be able to match you with the correct replacement filter.

Nowadays owner’s manual for hot tubs can be found online by just researching the brand you have purchased online.

Best Place to Shop for a Replacement Hot Tub Filter

There are currently a couple of ways to purchase a replacement filter for your hot tub.

• Order online: Visit a website like Amazon.com, hottubwarehouse.com, pleatco.com and enter your filter replacement part number.

Most of these websites have plenty of filter styles and sizes to choose from. Additionally, they will have a “shipping calculator” which will tell you how much it will cost to ship your replacement filter based on size and weight.

• Visit a local hot tub dealer: Most replacement filters are going to be similar no matter where you shop for them, but a local hot tub dealer is typically going to have the best prices and will also allow you the opportunity to purchase their replacement filter as well as help you install it.

Filter Replacement Tips

• If you are shopping online for replacement filters, your best bet is to try different websites until you find the one that has the replacement filter for your hot tub at the lowest price.

You may have to shop different websites, but replacement filters are almost always going to be available and will rarely (if ever) cost more than you want to pay.

• Once you find a replacement filter that is right for your hot tub, make sure to jot down the replacement part number before checking out so that you can verify it with the dealer when the time comes due for replacement.

Consider the capacity of your hot tub when replacing your filter. You don’t want to buy a cartridge that was manufactured to clean a larger hot tub than yours. Pleats within the filter should be collapsed so that dirt and debris will be easily caught within the filter.

• See if you can purchase more than one to save extra money. Sometimes you can find cost savings with the purchase of 2 or more which will ultimately save you money in the long run lowering your average cost of running your hot tub.

Be aware of replacement filter scams: There are replacement filters out there that promise to be universal and fit any hot tub, but this is not always the case.

Be sure to check with your manufacturer or dealer for a replacement part number before purchasing online to ensure you end up with the right replacement filter.

Always make sure that your filter replacement is returnable if it doesn’t fit or the replacement part number is not correct.

Final Thoughts

Replacing your hot tub filter is a relatively simple process. However, there are replacement filters out there that promise to be universal and fit any hot tub, but this is not always the case.

Be sure to check with your manufacturer or dealer for a replacement part number before purchasing online to ensure you end up with the right replacement filter.

Always make sure that your replacement part is returnable if it doesn’t fit or the replacement part number is not correct.