Hanna (HI70004P) 4.01 pH Buffer Solution 25 x 20 mL sachets Brand_Unicel KDF-55 assists in chloramine breakdown

KDF-55 assists in chloramine breakdown when paired with catalytic carbon

removing chlorine that would otherwise degrade ion exchange resin and shorten its lifespan from 7-10 years to 15-20 years

75" height

Corrosion-resistant construction

Hanna (HI70004P) 4.01 pH Buffer Solution 25 x 20 mL sachets Brand_Unicel KDF-55 assists in chloramine breakdownHanna Instruments HI70004P pH 4. 01 Buffer Solution 25 sachets of 20 mL NIST standardized calibration solution for precision pH meter accuracy NIST Standardized Single Use Sachets Always Fresh Field Ready The Hanna HI70004P delivers pH 4. 01 buffer solution in convenient 20 mL single use sachets, eliminating contamination and ensuring accuracy for every calibration. This is the most widely used buffer value for pH meter calibration across water