Total Hardness Liquid Reagents – Kit to Measure (50 Tests) dpd3 The gel inner reference solution

The gel inner reference solution does not need to be refilled

This ensures you only pay for what you truly need

covering crucial parts of the UV

When you need this replacement part

Total Hardness Liquid Reagents – Kit to Measure (50 Tests) dpd3 The gel inner reference solutionTotal Hardness Liquid Reagents Kit to Measure (50 Tests) are photometer compatible replacement refill consumable liquid reagents used for accurate pool & spa testing. Key Specs Product type: Replacement refill reagent (consumable) Test parameter: Total hardness Format: Liquid reagent kit (50 tests) Shelf life: 6 months (from the date you receive it) What this reagent does Basically dissolved salts belonging to the alkaline earth elements calcium and