• Potassium reagent tablets for pool photometer — 50 count
  • PoolWaterLAB Free Chlorine reagent tablets (50) for pool photometer testing, compatible photometer test setup
  • PoolWaterLAB Free Chlorine reagent tablets (50) for pool photometer testing, close-up of tablets
  • PoolWaterLAB Free Chlorine reagent tablets (50) for pool photometer testing, back label with product details
1 5
5.0 (1 reviews)
Reviews come from public marketplaces (Amazon, Shop and more). Want to share your experience? Leave a review.

Potassium Reagent Tablets (50) – for Pool Photometers

Potassium Reagent Tablets (50) – for Pool Photometers

$39.99 USD
$55.00 USD $39.99 USD
Sale Sold out
Shipping calculated at checkout.
  • Made in Germany for the US market
  • Item is located in the USA and ships from the USA. Orders ship within 24 hours. Free shipping on orders over $100. To find out the cost of worldwide shipping, simply add items to your cart and enter your shipping details — the rate will be calculated automatically

Which photometers are these reagents compatible with

The reagents are compatible with our entire family of photometers

  • PoolWaterLAB v2.0
  • PrimeLab v2.0
  • PrimeLab v1.0
  • PoolLab 1.0
  • PoolLab 2.0

Potassium Reagent Tablets (50) are photometer-compatible replacement / refill reagent tablets used for accurate pool & spa testing.

Key Specs

  • Product type: Replacement / refill reagent tablets (consumable)
  • Test parameter: Potassium
  • Range: 0.7 – 12.0 ppm (mg/l)
  • Format: Tablet reagent (50 tablets)
  • Shelf life:  2 years (sealed, stored properly)

What this reagent does

These reagent tablets are used by compatible photometers to measure Potassium concentration in pool and spa water.

Storage & shelf life

Store tablets cool, dry, and sealed. Avoid humidity and heat.

  • Recommended storage temperature: store sealed in a cool, dry place
  • Protect from: moisture/water and direct heat

Proper storage helps maintain accuracy and supports the stated shelf life.

Material Safety Data Sheet (MSDS) — Download

Note: Product performance depends on correct testing procedure and proper tablet storage.

View full details
1 4