Hanna (HI70004P) 4.01 pH Buffer Solution 25 x 20 mL sachets 200 GPM to 500 GPM Remove the filter housing using

Remove the filter housing using a filter wrench

The AF-20-4010-BB fits all standard 20" Full Flow (Big Blue) housings with 4

keeping them suspended and preventing precipitation as hard scale deposits

The Rusco 3/4" spin-down filter installs on any standard 3/4" FPT plumbing line as a whole-house pre-filter or point-of-use sediment barrier

Slowly turn the piercing screw clockwise to puncture the copper pipe

Hanna (HI70004P) 4.01 pH Buffer Solution 25 x 20 mL sachets 200 GPM to 500 GPM Remove the filter housing usingHanna 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