BLUELAB - CONDUCTIVITY PEN (EC OR PPM)

Marsoni

M251S

$93.60

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

BLUELAB - CONDUCTIVITY PEN (EC OR PPM)Bluelab Conductivity Pen: The Essential Solution for Monitoring Conductivity and Temperature! The Bluelab conductivity pen provides you with a simple and quick way to check whether your plants have the right amount of nutrients in the solution, allowing you to make any necessary adjustments. Proper plant feeding requires knowing exactly what you are giving them. Start with high quality nutrients. Measuring conductivity every day is essential to avoid

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We offer a 30-day return/exchange service after receiving.
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Only have had these for 24 hours but also purchased a couple other chew toys from Amazon as well and all were delivered at the same time. Point being that my #60 silver lab was trading off between all of them and after 2 hours only you can see little shards of plastic sticking up from these chews. Not sure how long these will last before having to throw them away but they are pretty nice and feel heavy and durable. So many of these companies claim they are “indestructible” but all 4 I purchased have little plastic pieces sticking up already. Even my #14 Shih Tzu enjoyed trying to chew these and it kept her busy even though they are for larger dogs.

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Reviewed in the United States on December 31, 2025

Verified Purchase

Jellyshodi

Lake Worth, US

★★★★★ 5

Golden approved

My golden retriever’s really enjoy these chew toys. They are pretty durable and last awhile. They are hard plastic but they do get rough edges after they’ve been chewed in for awhile

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Reviewed in the United States on May 28, 2026

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Steven S.

Grantham, US

★★★★★ 5

Perfect for chewy doggos

My dogs loved them! Keeps them entertained for a few mins. You can also fill with PB and freeze. Or yogurt and freeze. Great for the doggos

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Reviewed in the United States on May 24, 2026

Verified Purchase

Erika