Skip to content

Hanna 7.0 Calibration Solution




HI7007L is a premium quality pH 7.01 buffer solution. With lot number and expiration date clearly marked on the label and airtight, tamper-proof seal to ensure the quality of the solution, Hanna’s line of pH calibration solutions is an easy way to get great pH measurements every time.

  • Airtight bottle with a tamper-proof seal for quality.
  • Color coded label for easy identification of ph 7 buffer value.
  • Perfect for routine maintenance to ensure accurate readings while extending the life of the electrode.

Your Garden's Success is our #1 Priority

HTG Supply is committed to providing you with the very best products, pricing and service in the industry. We will ship your order fast and discreetly packaged to protect your privacy. Buy with confidence knowing your HTG Supply purchase includes simple returns as well as lifetime product support. Call our team of real growing experts with your purchasing or product use questions, and we will be here to help!

See it for less somewhere else? Give us a call and we’ll beat any online competitor’s price!

Customer Service:  1-866-710-GROW (4769) | | Hours: Mon-Fri 9:00 a.m. to 5:00 p.m.


HANNA’s pH Technical Buffer Solutions are dedicated to measurements that require extremely accurate pH monitoring and come with a certificate of analysis prepared by comparison against NIST standards. 


  • Airtight bottle with tamper-proof seal ensures quality and freshness of solution.
  • Each bottle marked with lot number and expiration date.
    • Hanna pH buffers are specially formulated to have an expiration of 5 years from manufacture for an unopened bottle.
  • Color coded label for easy pH buffer value identification, easy to identify different buffer values
  • Solution does not contain any dyes that may stain the reference cell of a pH electrode


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.