Nitrogen, Ammonia Reagent for YSI pHotoFlex Colorimeter

Model NH4-1 TP, Powder pack reagent, pack of 100. Range: 0.01 to 0.50 mg/L NH4-N; 0.01 to 0.64 NH4; NH3-N.

YSI Model 9300 Photometer Kit

$1,372.15

Sold Out

YSI Model 9500 Photometer Kit

$1,764.24

LaMotte SMART3 Colorimeter

$1,191.78

YSI Photometer Reagent, Zinc

From $23.39