Finnex HMA-300s 300 W Titanium Aquarium Heater

Exact-model photograph is not verified. No wattage-specific HMA-300s image was verified. The official HMA family photo shown in the full review is explicitly family-level and does not establish this exact size or package; this reference lookup is text-only.

Finnex lists the HMA-300s as a 300 W configuration for 80–100 US gallons, with 2.7 A at the 115 V reference and a 68–92°F family control span. The 80-gallon floor cannot be enforced by this finder, and exact electrical/installation details remain incomplete, so this reference is not a compatibility recommendation.

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 individual HMA-300s row is 300 W, 2.7 A at 115 V and 80–100 US gallons. The family chart’s standard-enclosed-aquarium and ±8°F-above-ambient footnote qualifies the manufacturer sizing claim; no independent tank-heating result is available.
• Finnex gives the HMA family a 68–92°F control range, analog-controller/LED/guard description and a ±2°F claim. Its prose also calls the control electronic, so the record does not treat it as a distinct digital model or independently verified accuracy.
• The HMA table separates the 300 W row from the 200 W and 500 W configurations, with adjacent capacity bands meeting at 80 and 100 gallons. Those chart edges help identify rows but do not prove equivalent heating behavior at an endpoint.
• The page describes a titanium tube and freshwater/saltwater use. The exact HMA-300s installation method, dimensions and included contents are not specified by the reviewed records.

Limits to weigh

• Finnex states an 80-gallon minimum, but the public matcher can enforce only the maximum. The model therefore stays outside the ordinary finder and questionnaire-based recommendations.
• The 2.7 A figure is shown at 115 V; exact supply-voltage range and frequency are not given. Confirm the nameplate on the actual unit.
• The reviewed HMA table does not give SKU, UPC, dimensions or an exact HMA-300s installation manual. The instructions index’s HMH entry is a different product family.
• A bounded Finnex shop collection omitted HMA; that observation does not prove discontinuation or absence from all sellers. A specific current offer, seller package and warranty coverage are not verified.
• No HMA-300s-specific product/package photo was verified. The full review’s official HMA family image is not an exact wattage or package identity; this reference page is text-only.

Check before ordering

• Confirm HMA-300s / 300 W on the actual unit and carton; do not treat the shared HMA image as proof of a selected wattage.
• Keep the complete 80–100 US-gallon band in view. This reference does not make the heater appropriate for tanks below 80 gallons or certify an aquarium inside the band.
• Check the actual power label and supplied HMA directions for voltage, frequency and installation requirements; 2.7 A at 115 V is only a table reference.
• Verify the seller, package contents, return terms and warranty terms for the exact item before ordering; the family table does not establish them.
• The central destination is a model search, not a confirmed HMA-300s listing or exact package. Do not substitute HMA-200s, HMA-500s or another Finnex family.