$18.95
Save $3.00
was $21.95
Buy Now, Pay Later
As low as
$4
/ mo
Learn more
- – 4-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Free shipping on this product
Non-returnable item
Learn more
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Availability:
In Stock.
Arrives
Sunday, Nov 1
At a glance
- Condition
- New
- Item Form
- Cartridge
- Studio
- FROG
Specs 7
| Brand | FROG |
|---|---|
| Item Form | Cartridge |
| Product Benefits | Controls Algae, Maintains Clean Sanitized Water, Protects Against Skin Irritation |
| Number of Packs | 1 |
| Package Dimensions | 6.97 x 2.01 x 1.97 inches; 8.78 ounces |
| Item model number | @Ease Smart Chlor Cartridge |
| Studio | FROG |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sunday, Nov 1
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Always work great!
Size: 3 Pack
Simple to use and always work well on keeping water level correct. Do not buy knockoffs!
Reviewed in the United States on September 16, 2026 by David B
It’s Chlorine? It works
Size: 3 Pack
I mean it’s chlorine, it works .. I will say though it would be nice to have it last a little longer as it always runs out right at about three weeks . Not a big deal but if it could last a month (4 weeks )it would be a little easier to keep up on the the replacement time table . But really that’s just a nit pick ..been using this product for over 5 years and it’s always worked
...
show more
Reviewed in the United States on August 1, 2026 by heath hodel
Fits perfect
Size: 3 Pack
This item is half the price as the original. It is a knock off, but it works just great.
Reviewed in the United States on September 15, 2026 by Michael Kucera
Chemicals for hot tub
Size: 3 Pack
Perfect item for our hot tub
Reviewed in the United States on October 2, 2026 by Coni
Well done!
Size: 3 Pack
Exactly what was ordered, and delivered in good order. Thanks!
Reviewed in the United States on August 3, 2026 by T. B. Archbold
As described
Size: 3 Pack
As described
Reviewed in the United States on October 3, 2026 by Ed
Effortless Spa Maintenance - FROG @ease SmartChlor Cartridges Are a Game-Changer!
Size: 3 Pack
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!
...
show more
Reviewed in the United States on October 6, 2023 by Amy E
Easy
Size: 3 Pack
Easy to use
Reviewed in the United States on September 2, 2026 by Terri Lewis