Batteries for pH/TDS pen or Thirsty Light -pack of 4

Stock up on batteries for your pH/TDS pen and never be without. The tiny battery discs hardly take up any room-- you can even store them right in your pen case so you're always prepared.

Also work as replacement batteries for your Thirsty Light.

Price: $6.95
$6.95
SKU: HGPROBAT