YSI DPD Chlorine Free Powder Pack Reagent intrinsically safe Non-weighted bailers are the sensible

Non-weighted bailers are the sensible default in wells with a healthy water column and little sediment — you get the same sample quality without paying for ballast you don't need

4 Sensor slots for up to 6 gas measurements using combination sensors

But speed isn't the only benefit

Check Valve

Also available as a self-stirring ProBOD probe for lab BOD testing

YSI DPD Chlorine Free Powder Pack Reagent intrinsically safe Non-weighted bailers are the sensibleYSI DPD Chlorine Free powder pack reagent for colorimetric free chlorine testing. Choose the sample volume that matches your instrument and expected range, and the pack size (100 or 1000) that matches your test volume. 10 mL: 0. 022. 00 mg L Cl2 on YSI pHotoFlex and 900 (or 0. 18. 0 mg L using two packs on the 900 only) 25 mL: 0. 55. 0 mg L Cl2, used with pHotoFlex 5 mL: 03. 5 mg L Cl2, for other manufacturers' instruments only Each pack contains pre