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AquaTop GH-300W 300 W Glass Aquarium Heater

Model: GH-300W · US configuration

AquaTop GH-300W 300 W glass aquarium heater and model-labelled package, retailer image
Retailer-supplied package/product view labeled GH-300W; not to scale and not evidence of performance.

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300 W adjustable analog glass aquarium heater; AquaTop lists this exact GH size up to 75 US gallons, with a 68–93°F current-page setting range and a 15-inch listed height.

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Why consider this model?

  • A possible fit only when a 300 W GH glass heater, a conservative 75-gallon maximum and a 15-inch vertical footprint fit after checking the exact model and room context.

Tradeoffs to weigh

  • The manufacturer category/product headline says 80 gallons, but the exact page technical block and family manual/data-sheet rows say 75; matching uses 75. No minimum volume or heat-output guarantee is published, and the longest GH body is unguarded glass without a shatterproof claim.
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