EH‑300 External heater 300W 12/16/20mm
300 W external aquarium heater with an electronic programmer (20–35 °C, 0.5 °C steps). Fits hoses of 12/…
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Find a productPower
300W
Dimensions
30 cm x 8 cm
Weight
0.68 kg
Brand
SunSun
SKU
SUNSUN GRZALKA EH-300
EAN
5903900049924
Product description
This external heater is for aquarium keepers who run their heating outside the tank on a hose line and need a unit that fits several hose diameters without extra parts. It replaces the potentiometer, which is the component most often reported as failing in heaters of this type, with an electronic programmer.
Why it matters
- Electronic programmer: temperature is set electronically rather than with a potentiometer, and the setpoint is adjustable in 0.5 °C steps across a 20–35 °C working range.
- Three hose sizes: the included interchangeable end adapters cover 12/16, 16/22 and 20/24 mm (inner/outer) hoses, so one heater can be fitted to different hose sizes.
- Cleaning brush included: the kit contains a brush for removing deposits from the inside of the heater.
- Compact footprint: the unit measures 30 × 8 cm and weighs 0.68 kg.
Specifications
- Power: 300 W
- Hose compatibility: 12/16, 16/22, 20/24 mm (inner/outer)
- Dimensions: 30 × 8 cm
- Weight: 0.68 kg
- Working range: 20–35 °C
- Programming sensitivity: 0.5 °C
- Control: electronic programmer
What it works with
The heater is designed for external installation on aquarium hoses in the 12–20 mm range, so it suits setups where the heating element sits in the water flow outside the tank. The 300 W rating and 20–35 °C range define the conditions it is intended for; check the rated power against your tank volume before choosing it.
Technical specification
Power
300W
Dimensions
30 cm x 8 cm
Brand
SunSun
SKU
SUNSUN GRZALKA EH-300
EAN
5903900049924
Weight
0.68 kg
Category
Heaters, cooling systems and thermometers
VAT rate
23%
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Frequently asked questions
The heater is compatible with hoses of 12/16 mm, 16/22 mm and 20/24 mm (inner/outer diameter). Replacement end caps for each of these sizes are included in the set.
The working range is 20–35 °C. The temperature can be programmed in steps of 0.5 °C.
The set includes the heater, interchangeable hose end caps for the three hose sizes, and a cleaning brush for removing dirt from the inside of the heater.
This model uses an electronic programmer instead of a potentiometer to set the temperature. Its programming sensitivity is 0.5 °C.
The heater measures 30 cm x 8 cm and weighs 0.68 kg. Its power rating is 300 W.
Questions & answers
No one has asked about this product yet.
Delivery methods
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6.84 €
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4.10 €
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4.33 €
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3.65 €
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4.10 €
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3.65 €
Pocztex Kurier Drzwi-Drzwi
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4.56 €
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4.10 €
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4.79 €
DHL Parcel Kurier do 12:00
1–2 business days
8.21 €
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9.57 €
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4.10 €
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45.36 €
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4.56 €
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4.56 €
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11.74 €
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2–5 business days
13.11 €
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13.22 €
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47.64 €
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7.86 €
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9.35 €
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14.47 €
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13.90 €
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14.36 €
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25.41 €
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11.17 €
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14.02 €
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10.83 €
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11.97 €
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10.26 €
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13.33 €
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11.17 €
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55.05 €
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9.69 €
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7.98 €
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11.17 €
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8.43 €
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9.12 €
DPD Pickup Europa — Austria
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9.57 €
DPD Pickup Europa — Belgia
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10.48 €
GLS Zagranica Drzwi-Punkt — Bułgaria
2–5 business days
18.69 €
DPD Pickup Europa — Czechy
2–5 business days
7.29 €
DPD Pickup Europa — Niemcy
2–5 business days
9.46 €
DPD Pickup Europa — Dania
2–5 business days
13.56 €
DPD Pickup Europa — Estonia
2–5 business days
11.05 €
DPD Pickup Europa — Hiszpania
2–5 business days
11.74 €
DPD Pickup Europa — Finlandia
2–5 business days
20.51 €
InPost International Drzwi-Punkt — Francja
2–5 business days
11.51 €
GLS Zagranica Drzwi-Punkt — Grecja
2–5 business days
19.72 €
DPD Pickup Europa — Chorwacja
2–5 business days
8.55 €
DPD Pickup Europa — Węgry
2–5 business days
7.64 €
DPD Pickup Europa — Irlandia
2–5 business days
10.60 €
InPost International Drzwi-Punkt — Włochy
2–5 business days
12.19 €
DPD Pickup Europa — Litwa
2–5 business days
8.09 €
InPost International Drzwi-Punkt — Luksemburg
2–5 business days
11.51 €
DPD Pickup Europa — Łotwa
2–5 business days
8.89 €
DPD Pickup Europa — Holandia
2–5 business days
9.35 €
DPD Pickup Europa — Portugalia
2–5 business days
8.09 €
GLS Zagranica Drzwi-Punkt — Rumunia
2–5 business days
22.79 €
DPD Pickup Europa — Szwecja
2–5 business days
18.12 €
GLS Zagranica Drzwi-Punkt — Słowenia
2–5 business days
20.51 €
DPD Pickup Europa — Słowacja
2–5 business days
7.18 €
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