NAPA FERMENTATION SUPPLIES, SINCE 1983
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  • Hanna 240 mV @ 25°C ORP Test Solution HI7021M

Hanna 240 mV @ 25°C ORP Test Solution HI7021M

SKU: 05305
$18.00
$18.00
Unavailable
per item

HI7021M is a quality ORP test solution made from reagent grade chemicals and used to test platinum and gold ORP electrodes. Hanna test solutions have the lot number and expiration date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution.


  • Prepared with reagent grade chemicals
  • Allows for a quick check of your ORP electrode
  • Air-tight seal to ensure the quality of the solution



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Napa Fermentation Supplies
Located Inside the
Napa Expo Fairgrounds 
575 Third St, Bldg. A
Napa,  California 94559
Phone (707) 255-6372
​BenJaynes@gmail.com
Prices Subject to Change
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Shop Hours:
Mon-Fri. 9 to 5
Saturday 10 to 5
Sunday Closed

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  • HOME
  • SHOP NOW
  • Getting Here / Contact Us
  • FREE BEERMAKING CLASS
  • APPLY FOR CREDIT
  • ABOUT US
  • SOCIAL MEDIA
  • JOIN OUR MAILING LIST
  • Blog
  • In Memory of Pat Watkins
  • Recipes
  • Equipment Financing