[2-Pack] Reusable Ethanol Testing Kit - Wide Mouth Fuel Test Bottle for E85 and Ethanol Levels - Fewer Spills and Clear Results in Minutes - Test Hundreds of Times - Two Ethanol Test Bottles Included

Worked just as advertised, if it is accurate well worth the money!

Follow the simple directions and you can check your ethanol levels in minutes! High quality. Affordable. I tested 0% ethanol

They worked great and arrived quickly. Having two testers work well for self blending.

Simple easy to use, works as expected.

[2-Pack] Reusable Ethanol Testing Kit. Wide mouth is very convenient. Well made.

These are a must if you want to keep track of how much Ethanol you are putting in your tank. Very easy to use and read. I recommend these to anyone who wants to test their fuel. These are a great value for your money

These do work quite well when you fill them to the proper levels. They’re large enough that it’s easy to fill with fuel/water without overshooting the line. Easy clear to read lines and numbers. HOWEVER, my reason for the review being only 3/5 is due to the brittleness of the product. After the 2nd use of one of the bottles, it tipped over and cracked. Since it was cracked it no longer sealed and fuel spilled everywhere. If you’re going to buy these, be careful to not knock them over.

Did what it was supposed to do. Just a little messy.