Salifert KH and Alkalinity Profi Test Kit - 5188

Salifert KH and Alkalinity Profi Test Kit - 5188

Marsoni

M251S

$11.50

Get it in 3 business days with 1 day shipping. Friday, May 29

Salifert KH and Alkalinity Profi Test Kit - 5188Calcium is not the only substance needed to form the skeletal material of corals and allow calcareous algae to grow. Carbonate and bicarbonate are also needed and these two substances can have a major effect on stabilising or buffering pH levels in the aquarium in the correct range of 8. 1 to 8. 4. The total carbonate and bicarbonate concentration is also called alkalinity or carbonate hardness and for a stable system the alkalinity should not

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This came in today and it was very easy to put on the switch. It does have bubbles but they will disappear after a little while. I just got this switch used the other day and it did not have a screen protector. The screen had a few minor scratches, but the screen protector makes those scratches seem like they never even existed. The reactivity on the screen is very good. It is practically the same as it would be without the screen protector.

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Reviewed in the United States on April 28, 2026

Verified Purchase

Karla

Bozeman, US

★★★★★ 5

Super easy install!

Size: 7.9"

Super easy to install, you really can’t mess it up since the guide is so helpful! Plus you get extra shields just in case! I’ve had mines for months and it hasn’t cracked so the durability is great! Scratch free and smudge free!

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Reviewed in the United States on April 18, 2026

Verified Purchase

Joshua

Natrona Heights, US

★★★★★ 5

The ultimate water bottle

Color: Iced Breeze, Size: 24 Ounces

I can’t believe I’m so excited about a water bottle. The design is amazing - I love that there’s no straw poking up but there’s still a straw sip function. I like that the carrying hook doubles as a lid locking mechanism. This bottle feels very sturdy but it’s sleek and easy to grab - I have small hands and it isn’t a problem for me to drink from with one hand. It’s also really nice that this bottle fits in standard couple holders both at the gym in the machines and in my car. The color selection is so fun and I am pleased that my bottle looks exactly as pictured. My water has stayed cold and my ice cubes frozen for over 12 hours now. Cannot recommend enough!

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Reviewed in the United States on May 29, 2026

Verified Purchase

Rob W

West Palm Beach, US

★★★★★ 5

Keeps drinks cold all day

Color: Very, Very Dark, Size: 24 Ounces

We got this Owala bottle for our son to use as his everyday school water bottle, and it has been excellent. The 24oz size holds plenty of water for the school day without being overly bulky or heavy to carry around. The insulation works extremely well. Drinks stay cold all day long, even when the bottle sits in a backpack for hours. That’s probably the feature we’ve been most impressed with so far. It’s also been great for car trips since it keeps water cold for extended periods without needing constant refills. The design is really well thought out too. The built-in straw makes it easy to drink from quickly during class or while traveling, and the lid feels secure and leak-resistant when closed. It also has a clean, modern look that feels a little more premium than many standard water bottles. Build quality feels solid overall, and it seems designed to hold up well to everyday use from school, sports, and travel. Overall, this has been a fantastic everyday water bottle and definitely lives up to the hype. Keeps drinks cold, holds a good amount of water, and works equally well for school or road trips.

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Reviewed in the United States on May 28, 2026