Hyper Tough Model H2500 trimmer. I'm repurposing my garage, and since I took a change of job, I have someone else do my lawn, so I haven't used this in > 3 years, but it still works, though it does need string.
From PartsWarehouse.com:
The Hyper Tough H2500 is a 25cc 2-cycle gas string trimmer. Known for its affordability, this curved-shaft weed whacker uses 0.080-inch trimmer line and requires a gas mixture of 50:1 (gas to 2-cycle oil).
Per University of Google:
For replacement parts or troubleshooting, common needs include:Spark Plug: Standard RDJ7J spark plug (Part #753-06847).Air Filter: Standard foam air filter (Part #753-06417).Carburetor: Uses a 2-cycle diaphragm carburetor; can be found online by referencing part #753-06423.Trimmer Head: Uses a standard bump-feed head (Part #841P035132S or 753-04284).Finding Hyper Tough replacement parts is generally easiest through online retailers rather than physical stores. You can browse compatible maintenance kits and accessories on the Amazon Hyper Tough Trimmer Parts catalog or view detailed schematics on the PartsTree Hyper Tough H2500 Diagram page.
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There are plenty of places online to find information about this, trimmer, which we paid about $ 135 for maybe 5 years ago.
If interested, bring the fuel and you can test before using (I tossed the fuel it had as it should be no good after over 3 years I'm guessing).
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Similar item for $ 148: https://www.walmart.com/ip/Hyper-Tough-26cc-2-Cycle-Gas-Powered-18-Straight-Shaft-String-Trimmer/ show contact info
More info: https://www.youtube.com/watch?v=aB9maSYtaio
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Listing condition as excellent, though it's a bit dusty.