Reef Zlements Macro Element Calcium 1L

Marsoni

M251S

$19.99

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

Reef Zlements Macro Element Calcium 1LCalcium is a macro element which is present in abundance in the reefs around the world. All animals present in our aquariums need calcium along with carbonate, they use it to support their vital functions and grow. It is crucial to supply our tanks with a stable level of calcium. Calcium is a macro element that gets depleted from the water in our tanks very quickly. Therefore, it is important to dose calcium in a stable and constant way. Calcium

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These brackets were exactly what I was looking for. Very solid construction, clean powder-coated finish, and they gave the shelves a modern industrial look without being bulky. Installation was straightforward, and once mounted into studs they felt extremely sturdy. I used them for floating wood shelves and was honestly impressed with how much weight they can handle without flexing. The black finish also matched perfectly with the rest of the room hardware. For the price, these are a great value and look far more expensive than they are. Would definitely buy again for future projects.

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Reviewed in the United States on May 1, 2026

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Ryan S.

Houston, US

★★★★★ 5

Heavy duty brackets!

Size: 12 Inch, Style: Black 6Pack

Super heavy duty brackets. Slim look and hardware pack included is good quality. Comes with two kinds of anchors and matching screws. Bought multiple sets and very pleased with them. Paid 30 bucks for a 6 pack.

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Reviewed in the United States on March 27, 2026

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Amazon Customer

Whiting, US

★★★★★ 5

Sturdy and easy to install

Size: 12 Inch, Style: Black 6Pack

These shelf brackets come with screws and are easily installed. Very sturdy and can hold 14 hardcover books easily. Would recommend these shelf brackets for use to hold things to the wall.

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Reviewed in the United States on April 17, 2026

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R Landers

Chelsea, US

★★★★★ 4

Needs heavier duty wall anchors

Size: 10 Inch, Style: Black 6Pack

Brackets are nice and sturdy and look great in my son’s room. The included mounting hardware is not strong enough to support the brackets and shelves and I had to purchase heavier duty wall anchors, other than that great product.

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Reviewed in the United States on August 25, 2025

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Henry Combe

Houston, US

★★★★★ 5

Very sturdy.

Size: 12 Inch, Style: Black 8Pack

Great buy compared to similar product at Home Depot. Screws can be made of a better quality metal. Overall very sturdy. Fits 2x12 lumber great.

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Reviewed in the United States on May 28, 2026