Fluval · Updated August 2026
Fluval E300: price & specs
Fluval E300. Every price and spec below is linked to its source and dated — no guesses.
Source: aquacave.com verified ✓ corroborated verify in ledger
The Fluval E300 is listed at $72.99 on aquacave.com as of 2026-08-16, the most expensive aquarium heaters (median $39.99); other retailers may be lower. It earns a Silver Deskmark — 49/100 pay-blind standing, #3 of 10 in class.
Verified Aug 16, 2026 · figures linked to their source in the table below
Is the Fluval E300 a good buy?
At $73, the Fluval E300 is the most expensive of the 9 aquarium heaters we track, where the median is $39.99. On the spec sheet, its wattage of 300 W is above the median of the 10.
Specifications
| Price (US) | $72.99 AquaCave retail price, verified live 2026-08-16; Fluval's own US store page is bot-protected. |
|---|---|
| Brand | Fluval |
| Released | — |
| Wattage (W) | 300 |
| Tank size range gal | up to 100 gal |
| Adjustable thermostat | Yes |
| Material | glass |
| Fully submersible | Yes |
| Temperature accuracy f | — |
| Shatterproof guard | Yes |
| External controller | No |
Source: aquacave.com (verified 2026-08-16) · corroborated by fluvalaquatics.com. Wattage (300W), 100-gal max tank size, integrated LCD with dual temperature sensors, and glass sleeve with integrated fish guard verified via live fetch of AquaCave's product page ($72.99). temperature_accuracy_f corrected to null: the source states only that temperature is SELECTABLE to the nearest 0.5°F (an adjustment increment) plus a ±2°F color drift alert — no true accuracy tolerance is published (the prior draft's '±0.5°F accuracy' conflated the selection increment with a tolerance). Price is AquaCave retail, not a confirmed Fluval MSRP.
Is the Fluval E300 worth it vs cheaper aquarium heaters?
Fluval E300 against its closest cheaper and pricier aquarium heaters on the specs that matter — every value sourced. See all 9 ranked
| Product | Price | Wattage (W) | Tank size range gal | Adjustable thermostat | Material | Fully submersible |
|---|---|---|---|---|---|---|
| Fluval E300 this | $72.99 | 300 | up to 100 gal | Yes | glass | Yes |
| hygger 500W Titanium | $66.99 | 500 | 60-120 gal | Yes | titanium | Yes |
Frequently asked questions
How much does the Fluval E300 cost?
The Fluval E300 has a US price of $72.99 (AquaCave retail price, verified live 2026-08-16; Fluval's own US store page is bot-protected.), as of 2026-08-16.
How does the Fluval E300 compare on price?
At $73, the Fluval E300 is the most expensive of the 9 aquarium heaters we track, where the median is $39.99.
What are the Fluval E300's key specs?
Fluval E300 (Fluval): wattage w 300, tank size range gal up to 100 gal, adjustable thermostat Yes, material glass, fully submersible Yes. Full sourced spec sheet verified 2026-08-16.
Price of record: $72.99 at aquacave.com, 2026-08-16. Other retailers may be lower — check the current price:
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All aquarium heaters ranked · Open data & methodology · Queryable via MCP
Compare with
Head-to-head
Cheaper aquarium heaters
- hygger 500W Titanium $66.99
- Aqueon Pro 100W $49.99
- Cobalt Aquatics Neo-Therm 100W $49.12
- Eheim Jager 150W $39.99
- Fluval M150 $36.99
- Marineland Precision 200W $36.97
More from Fluval
- Fluval M150 $36.99