LaMotte Phenol Red, 30 mL, 7037-G In stock$17⁹⁹

LaMotte 7037-G phenol red indicator reagent, 30 mL bottle

LaMotte Phenol Red, 30 mL, 7037-G

Name: LaMotte Phenol Red, 30 mL, 7037-G
Brand: LaMotte
SKU: LAM-47-7037
Price: 17.99 USD
Availability: InStock

Ask a questionMPN 7037-G

$17⁹⁹

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Quick overview

LaMotte 7037-G The manufacturer part number, so you can reorder the exact reagent your kit was built around.
30 mL bottle Standard refill size for a LaMotte test kit reagent.
Phenol red indicator Phenol red is the standard indicator used to read pool pH by color.
Refill, not a whole kit Buy the one reagent that ran out instead of replacing the case.
Reagents have a shelf life An old or heat damaged bottle reads wrong, which is worth remembering before chasing a chemistry problem that is not there.
Pairs with the chlorine reagents The DPD free chlorine reagents are separate LaMotte items in the same 30 mL size.

Full description and specifications ↓

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Product details

The LaMotte 7037-G is a 30 mL bottle of phenol red indicator, the reagent LaMotte pool water test kits use to read pH.

How it is used

Phenol red is a color indicator. Added to a measured water sample, it turns a shade that corresponds to the pH of that sample, and you read it against the comparator block or color chart supplied with your kit. It is one of the two readings, along with chlorine, that most operators take every time they test.

Buying the refill

Reagents run out at different rates, and there is no reason to replace a whole kit because one bottle is empty. This is the phenol red on its own in the standard 30 mL size. The DPD reagents for free chlorine are separate LaMotte items in the same size if those need topping up at the same time.

A note on storage

Reagents do not last forever. A bottle that has been sitting in a hot pump room or is well past its date can read off, and that sends people chasing a chemistry problem the pool does not have. Keep reagents cool and out of the sun, and replace them on a schedule.