Best in 7 days
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Ships within 48 hours · Estimated delivery Jul 5 - Jul 10
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Description
Neptune Apex FMM Optical SensorNeptune Apex FMM Optical Sensor Overview This sensor plugs into your FMM and, using reflected infrared light, will signal your Apex when it changes state from being wet to dry or dry to wet. This sensor can be used for constructing your own ATO (auto top off), as a high level warning sensor in your sump, water storage level sensor, and much more. The sensors can be mounted into custom brackets or through a hole in a vessel. Included are a fastening
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- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.5 ★★★★★
Based on 460 reviews
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Product Reviews
★★★★★ 4
Taste good
I like the flavour, not too sweet, the only thing is they take a while to dissolve
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Reviewed in the United States on May 27, 2026
★★★★★ 5
Buen hidratante
Buen producto y muy funcional para actividades deportivas
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Reviewed in the United States on May 31, 2026
★★★★★ 3
Weird taste...and no fizz....
I presume these do what they are meant to do...replenish electrolytes (although how completely you need replenishing, meaning needing other minerals besides what are in these Idk)
However, the whole reason I would not repurchase is the taste is ...OFF. For some its not that strong, but for me its TOO strong, I want a subtler lemon lime taste (or any other flavor) basically a sugarless Sprite taste. And if you're looking for fizz to truly make it a flavored seltzer water experience, Nope.
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Tastes good
They have a good taste and I like the fizzy part.
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Reviewed in the United States on February 19, 2026
★★★★★ 4
Taste good!
Taste good!
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Reviewed in the United States on January 15, 2026
