Finnex HPC-300 digital glass aquarium heater

Exact-model photograph is not verified. Text-only reference page. Finnex applies the same generic image to all three HPC wattages; it does not distinguish HPC-300 or establish its selected package. No exact HPC-300 photo is presented here.

The 300 W Finnex HPC-300 is listed for 80–100 US gallons, with a 13.75-inch heater length and a 68–92°F control range. Its 80-gallon floor cannot be applied by this maximum-only finder, so this is a model-identification reference—not a recommendation for any tank up to 100 gallons. It is a distinct configuration from the 200 W HPC-200, though their written volume bands meet at 80 gallons.

Search results may include other models. Confirm the exact model, applicable region, condition and included parts before ordering.

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Documented model details

• The official Shop record pairs HPC-300 / 300 Watts with SKU HPC-300 and UPC 850006562268; the manual distinguishes it from the 100 W and 200 W rows.
• The HPC-300 row lists 300 W, an 80–100 US-gallon band, 2.70 A at a 115 V reference, a 68–92°F control range, and a 13.75-inch heater length. The separate HPC-200 row is 200 W, 60–80 gallons, 1.35 A at 115 V, and 12 inches; their shared 80-gallon value is an overlapping stated endpoint, not evidence that the models are interchangeable.
• Finnex's HPC family overview describes 2 mm quartz glass with a guard, a cord-mounted digital controller, remote temperature sensor, setting memory, and sensor power cut-off if exposed to air. Finnex instructs users to clean/check the sensor every 30 days and says the heater must operate above 150 ppm TDS; it does not expressly state freshwater or saltwater approval.

Limits to weigh

• The manufacturer's 80-gallon lower endpoint cannot be enforced by the existing maximum-only volume rule. This page identifies the configuration but does not recommend it for smaller aquariums or certify it for any specific setup.
• The manual's 2.70 A value is explicitly referenced to 115 V and does not establish the complete supply voltage, frequency, plug, or certification. Inspect the actual unit's electrical label.
• The HPC sources specify operation above 150 ppm TDS but do not name freshwater/saltwater approval or establish all immersion, orientation, clearance, mounting, and inline-installation requirements. The sensor cut-off does not authorize dry operation.
• The same generic Shop photograph is assigned across 100/200/300 W variants and does not identify an exact HPC-300 assembly or package. The model-reference page is text-only.
• An exact Amazon product page or seller package has not been verified for this model. The central action is a labelled full-model search rather than an exact listing link; verify the identity of any result before ordering.

Check before ordering

• Match the offered and delivered item to Finnex HPC-300 / 300 W; the official Shop record pairs that exact option with UPC 850006562268. Do not substitute the 200 W sibling.
• Review the full 80–100 US-gallon band, especially its 80-gallon floor, which the public maximum-only finder cannot enforce.
• Read the actual product's complete electrical label and exact HPC instructions before connection. The 2.70 A at 115 V manual reference is not the full supply specification or installation method.
• Confirm the aquarium's water meets Finnex's stated above-150-ppm TDS requirement; follow the 30-day sensor cleaning/check interval and independently monitor water temperature.
• The exact Amazon listing remains unverified. Use the central control only as a Finnex HPC-300 / 300 W search and verify the exact model, region, condition, seller, included parts, and return terms before purchase.