Colombo KH Plus Pond Carbonate Hardness Booster | Stabilises pH & Water Quality

Colombo KH Plus Pond Carbonate Hardness Booster | Stabilises pH & Water Quality

Marsoni

M251S

$19.99

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

Colombo KH Plus Pond Carbonate Hardness Booster | Stabilises pH & Water QualityColombo KH Plus is a fast acting treatment that increases carbonate hardness (KH) in pond water, helping to stabilise pH levels. Maintaining the correct KH is essential for a healthy pond, as low levels can lead to sudden pH fluctuations that may harm fish and plants. Key Features: Increases carbonate hardness (KH) levels Helps stabilise and maintain consistent pH Supports a healthier environment for fish and plants 100% natural pond treatment Fast

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I have worn these 2-3 times already. The first day was a school/work day so I was on my feet 9 hours and the only issue I had was with the side of the boot rubbing against my ankle. I just make sure I wear socks high enough to cover my ankles or jeans that go into the boots now for long wear days. Absolutely love them! They keep my feet dry in this snow( we live in Michigan). I had been looking for a pair like this for awhile now and was getting super frustrated that I couldn't find my size in any that I liked. I saw that they had these available in a 10.5 and I wear 11. I looked at the Sorel website reviews (since the amazon ones weren't super helpful on sizing) and they said that the boots ran big so I took a chance on the 10.5 fitting me. They fit perfect. I have long narrow feet but I could see where they would be tight or uncomfortable on someone with wider feet. I've been trying to find a pair for my mom now since she has boot envy.

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Reviewed in the United States on January 27, 2026

Verified Purchase

Nicholle King

Pawtucket, US

★★★★★ 5

Worth it.

Size: 8.5, Color: Crushed Clay/Gum 2

Love all my Sorels. These were really cute, good color, comfortable, warm, fit well, good quality and sturdy. I would order again.

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Reviewed in the United States on March 26, 2026

Verified Purchase

jmb02129

Grantham, US

★★★★★ 5

Fantastic Boots!

Size: 8.5, Color: Redwood/Gum 10

Completely satisfied with these boots. True to size, well made, comfortable from the get-go; not break in needed. Waterproof- really. The Red Suede has withstood a nasty winter season & still looks great. Good traction. I like the ankle height which looks good with long, mid length pants & leggings. I love the easy slip on/off aspect..made getting ready for dog walking easy. I 100%recommend!

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Reviewed in the United States on April 11, 2026

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Paige

Los Angeles, US

★★★★★ 5

Definitely worth the price

Size: 6.5, Color: Black/Black

Absolutely love these boots! I originally bought them to wear in NYC in December & they did not disappoint. They were comfortable, cute, durable and worked well in the slush/snow. The traction on the bottom is also nice! They kept me warm with wool socks. I wear them almost daily now. Perfect for everyday. easy to wear with variety of outfits. Good every day shoe.

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Reviewed in the United States on January 3, 2026

Verified Purchase

Kimberly

San Leandro, US

★★★★★ 5

Snagged a deal

Size: 7, Color: Redwood/Gum 10

I waited and waited to get these boots! I knew I was chancing it, but they went on sale, and I snagged them! I am a size 7, and they fit nicely with socks. a little loose, barefooted, but what psycho wears boots without socks? They are comfortable and really well-made.

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Reviewed in the United States on April 8, 2026