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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I ordered these for my son, he’s in the military and the socks they issued him were all getting holes worn in the top of the toe area from his work boots. So I ordered him some of these to supplement his normal ones. He said they’re pretty comfortable, we’ll see how they hold up after he wears them for awhile. But initially I’d say they’re a good buy. Points for the affordability.

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Reviewed in the United States on February 23, 2026

Verified Purchase

Derek Boyce

San Leandro, US

★★★★★ 5

Better than described

Color: Green, 4 Pack, Size: Large

Very comfortable socks that stay up in my boots. Look forward to purchasing more!

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Reviewed in the United States on May 30, 2026

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Chris R.

Houston, US

★★★★★ 5

New Socks (Finally)

Color: Green, 4 Pack, Size: Large

I haven’t treated myself to new boot socks in WAY too long and all my old ones were starting to get holes in them, so I figured it was time. These were easily the best deal, being really soft and comfortable for a decent price. Hopefully they last a long time!

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Reviewed in the United States on February 5, 2026

Verified Purchase

Jaren LeCompte

Charlottesville, US

★★★★★ 5

Comfortable, solid sock

Color: Green, 4 Pack, Size: Large

Out of all the military socks I've worn, these are the best. Super comfortable, not that thick heavy material you normally see. These will be my go to from now on. My only gripe is that as a taller person, these socks only go halfway up my calf, but thats a marginal complaint. Definitely get these if you wear these types of socks a lot.

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Reviewed in the United States on March 5, 2026