Fluval · Updated October 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 2026-08-31, 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 Oct 7, 2026 · figures linked to their source in the table below
Seen at
- aquacave.com$72.99read
Each figure is what that seller's own page published on the day we read it — not our price of record, and not a live quote. Follow the link for what it costs right now.
Price history
$72.99How we know these prices
The curve above is one dated record of this product's price — our own tracking combined with Internet Archive snapshots of a public page that published the figure, reaching back before we began: this product's own source page wherever the archive holds one, otherwise the named retailer or reference page the point was read from. Every archived point links to the snapshot that proves it, so the host it came from is on the record and you can verify each one yourself.
Verify each point — 8 archived snapshots
- 2017-05-11 — $54.95 · snapshot ↗
- 2019-07-15 — $54.95 · snapshot ↗
- 2019-09-17 — $54.95 · snapshot ↗
- 2020-10-22 — $54.95 · snapshot ↗
- 2021-01-18 — $64.95 · snapshot ↗
- 2021-05-09 — $69.95 · snapshot ↗
- 2025-12-04 — $61.99 · snapshot ↗
- 2026-02-20 — $61.99 · snapshot ↗
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 (read 2026-10-07) · corroborated by fluvalaquatics.com (read 2026-08-16).
How we checked
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 blank: 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 an earlier version'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 2026-10-07.
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.
Has the Fluval E300's price dropped?
No — since 2017-05-11 the Fluval E300 has risen 32.8%, from $54.95 to $72.99; the lowest we have recorded is $54.95 (2017-05-11).
What is the lowest price the Fluval E300 has been?
The lowest we have recorded for the Fluval E300 is $54.95 on 2017-05-11.
Is now a good time to buy the Fluval E300?
The Fluval E300 is currently $72.99; the lowest we have recorded is $54.95 (2017-05-11). Every price is dated, so you can judge it against its own history.
What are the Fluval E300's key specs?
Fluval E300 (Fluval): Wattage (W) 300, Tank size range (gal) up to 100 gal, Adjustable thermostat, Material glass, Fully submersible. Full sourced spec sheet verified 2026-10-07.
Price of record: $72.99 at aquacave.com, 2026-08-31. Other retailers may be lower — check the current price:
See Fluval E300 on Amazon As an Amazon Associate we earn from qualifying purchases.Similar aquarium heaters
Nearest in price — swipe to browse. Every pick sourced and dated.
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
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