Frog® Filter Mate™ (Formerly Filter Frog)

FROG Products

Special Price $39.99 Regular Price $47.99
Guaranteed Lowest Price from Watson's Price Match
The perfect mate for clean, soft water.
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BrandFROG Products
  • Lower your bromine or chlorine use up to 50%* with minerals
  • Soft feeling water that’s easier on your skin, swimsuits and spa surfaces
  • Convenient reminder dial – set it and forget it for 4 months
  • Easy installation into most filters – no assembly required

About the FROG Filter Mate

The mineral sanitizer that cleans and softens hot tub water inside your filter cartridge. While you’ll add dichlor or bromine separately, you’ll need half the usual amount, because our FROG minerals are active sanitizers. The result is you kill bacteria two ways – with minerals and a low level of chlorine or bromine. We call it Fresh Mineral Water® because it looks and feels amazing.

Frog® Filter Mate™ (Formerly Filter Frog)
Frog® Filter Mate™ (Formerly Filter Frog)

How does the FROG Filter Mate work?

The FILTER Mate mineral sanitizer fits easily into the center of your spa’s filter cartridge. It is a one-piece design that can be shortened if necessary. The unique design draws in your spa water through the openings in the cap and sides and circulates it through our patented mineral formula dispensing a low level of minerals into the spa. Simply supplement with 1 ppm of chlorine or bromine.

Frequently Asked Questions

How does FROG Filter Mate Work?

It simply fits in the center of most filter cartridges. The one-piece design makes it stronger so no chance of breakage. Set the dial to the 4 month replacement date and drop it in the filter.

How long does FROG Filter Mate last?

4 months or whenever you drain and refill the hot tub.

What if FROG Filter Mate doesn’t fit in my filter cartridge?

You may set it in the filter well or skimmer tray. If it is too long, you can cut off part of the stem using the notches.

Frog® Filter Mate™ (Formerly Filter Frog)

About FROG @ease

At FROG, enriching people’s lives is what they aim to do every day. And not just their customers’ lives, but their employees and vendors, too. You’ll find that vision reflected in every single product they make, and the way they bring them to market.

Shop FROG @ease
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* Monthly payments not available on all spas and are that, estimations only. The estimated monthly payment amounts shown are based on the current finance programs or offers, specific model and options, consumer credit rating and approved financing through a Watson's financing partner. Actual spa price, monthly payment and other terms are available only on approved credit and are subject to negotiation between you and your salesperson. Does not apply for any online purchases.

Please visit a Watson's store near you for monthly payment, and other terms and special offers. You may also submit an application for credit at Many variables, including current market conditions and your credit history will affect your monthly payment and other terms. Offers are subject to change or termination at any time.