# Fluval E300: specs and price

**Price (US):** $72.99 at aquacave.com (AquaCave retail price, verified live 2026-08-16; Fluval's own US store page is bot-protected.), as of 2026-08-16. A sourced, dated price of record — other retailers (incl. Amazon) may be lower. Among the 9 aquarium heaters we track it is the most expensive; category median $39.99.
**Brand:** Fluval
**Deskmark:** Silver Deskmark — pay-blind category standing 49/100, #3 of 10 in class (independent, computed from sourced data, never for sale).

## Specifications

| Spec | Value |
| --- | --- |
| Price (US) | $72.99 |
| Brand | Fluval |
| 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 |

## Where it stands

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.

## 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.

Source: https://aquacave.com/hagen-fluval-e-300-watt-electronic-aquarium-heater.html (aquacave.com, accessed 2026-08-16)
Corroboration: https://fluvalaquatics.com/us/shop/product/e300-electronic-heater-300w-up-to-100-us-gal-375-l (accessed 2026-08-16)
Canonical: https://frontdeskreview.com/product/aquarium-heaters/fluval-e300/
Cite: Per The Front Desk Review, the Fluval E300 price of record was $72.99 as of 2026-08-16 — https://frontdeskreview.com/product/aquarium-heaters/fluval-e300/
License: CC BY 4.0. Price history: https://frontdeskreview.com/data/price-history.jsonl