We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Blue test strips in a container with color chart label

INSTA-TEST 2987-G Test Strip Wide Range 25 Tests

SKU CH-V1KQ-F9Z02

Test strips measure pH 4 to 10 and total chlorine up to 50 ppm with 1.0 pH resolution, 25 tests per pack

  • TypeDigital Multimeters
  • Measures pH 4 to 10 for balanced water
  • Detects total chlorine up to 50 ppm
  • 0 pH resolution gives clear readings
  • 25 tests per pack for extended use
  • Colour chart label simplifies result matching

Wide-Range Test Strips for Water Testing

INSTA-TEST 2987-G strips provide 25 individual tests for pH and total chlorine in pools, spas or drinking water. The blue crepe-paper strips measure 3 in long and 1/4 in wide for easy handling. They suit homeowners and technicians who need quick, on-the-spot water-quality checks.

Dual-Parameter Range with 25-Test Capacity

Each strip reads total chlorine from 0 to 50 ppm and pH from 4 to 10 with a 1.0 pH resolution. The included colour-chart label lets you match results instantly. The kit covers routine monitoring but does not test alkalinity, hardness or other parameters.

Simple Operation with Minimal Overhead

No power, calibration or accessories are required; dip the strip and compare to the chart. The paper format adds negligible waste and no electronic noise. Restrictions apply in certain states, so verify local regulations before purchase.

Highlights

  • Measures pH 4 to 10 for balanced water
  • Detects total chlorine up to 50 ppm
  • 0 pH resolution gives clear readings
  • 25 tests per pack for extended use
  • Colour chart label simplifies result matching

Specifications

BrandINSTA-TEST
TypeDigital Multimeters

Questions about this item

Will the 2987-G strips work with my older pool controller that reads pH in 1.0 increments?

Yes, the strips provide pH resolution of 1.0 pH, matching the step size of controllers that display whole-unit readings.

How can I verify the strips are giving correct results after opening the bottle?

Dip a strip in water with known chlorine or pH levels, then compare the pad colours to the included colour chart label for 0 to 50 ppm total chlorine and 4 to 10 pH.

Does the 25-test pack include the colour chart or must I buy it separately?

The bottle contains 25 test strips and the colour chart label is printed on the packaging, so no separate purchase is needed.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.