DPD N°4 Reagents Tablets (50) – for Pool Photometers

DPD N°4 Reagents 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: Active oxygen Range: 0.0 - 30.0 mg/l (ppm) Format: Tablet reagent (50 tablets) Shelf life: 2 years (sealed, stored properly) What this reagent does DPD N° 4 is a reagent used by compatible photometers to measure Active oxygen. Water disinfected with persulfate-containing media is measured according to the DPD N° 4 method. Storage & shelf life Store tablets cool, dry, and sealed. Avoid humidity and heat. Recommended storage temperature: 59-77°F (15-25°C) Protect from: moisture/water and direct heat Proper storage helps maintain accuracy and supports the stated shelf life. Note: Product performance depends on correct testing procedure and proper tablet storage.