FROG @Ease in-Line SmartChlor Replacement Chlorine Cartridge for use in Marquis Spas, Caldera Spas, Artesian Spas and Hot Springs Spas up to 600 gallons, Hot Tub Sanitizer, Cyanuric Acid Free

As a proud owner of a Marquis Spa, I can't express enough how the FROG @ease In-Line SmartChlor Replacement Chlorine Cartridges have simplified spa maintenance and made my relaxation time more enjoyable.Convenient Design (5/5): These SmartChlor cartridges are brilliantly designed. They fit seamlessly into my spa's in-line system, ensuring hassle-free and precise chlorination.Easy Monitoring (5/5): The SmartChlor system offers a hassle-free way to monitor and maintain chlorine levels. The color-changing technology makes it simple to know when it's time to replace the cartridge.Water Clarity (5/5): Since using these cartridges, I've noticed a significant improvement in water clarity. My spa water stays crystal clear, ensuring a luxurious and inviting soak every time.Consistent Chlorination (5/5): These cartridges provide a steady release of chlorine, maintaining the ideal levels for safe and hygienic spa water. I no longer worry about manual dosing.Longevity (5/5): The three-pack of cartridges lasts quite a while, making it a cost-effective choice for spa maintenance. I appreciate the convenience of having replacements readily available.Minimal Maintenance (5/5): The FROG @ease SmartChlor system has reduced the time and effort I need to dedicate to spa maintenance. It's a set-and-forget solution that I truly appreciate.In summary, the FROG @ease In-Line SmartChlor Replacement Chlorine Cartridges have transformed my spa ownership experience. They ensure crystal-clear water, effortless maintenance, and worry-free relaxation. If you own a Marquis Spa, these cartridges are a must-have investment that elevates your spa enjoyment. They're a 5-star game-changer that I wouldn't be without!

Cheapest option I’ve found for our hot tub. Works great!

The FrogEase Smart Chlor is a game-changer for spa maintenance! It makes keeping the spa clean and balanced so much easier. The system delivers consistent, effective chlorination without the hassle of constant monitoring or chemical adjustments. The Smart Chlor feature helps maintain the perfect chlorine level, and I love that it’s long-lasting, so I don’t have to replace it as often. It’s simple to use, and the spa has never looked better. If you’re looking for a low-maintenance solution to spa care, I highly recommend this product!

Love these they work great, easy to use.

It was on time and a good price

Chlorine is chlorine is chlorine. Whether it's in a tablet, a bucket, or wherever. My only complaint is that the cartridges only last about 2-3 weeks, depending on our usage, which is every single day. So I suppose if we only used it once in a while they would last longer, but why would you spend $15k on a hot tub and not use it every day? I MEAN, COME ON!

Works well

Great product