Inner layer:
smooth, black EPDM rubber
synthetic braid
Outer layer:
black EPDM rubber
Standard length:
10 m, 15 m, 20 m, 30 m, 35 m, 40 m i 60 m (minimum length available: 10 m)
Available diameters:
19 mm (ETH HWI 19) or 25 mm (ETH HWI 25), wall thickness of about 4-5 mm
Working temp. range:
-20°C to +80°C
Max. working press.:
10 bar
Supply voltage::
230 V AC
10-20 W/m
Temperature control:

HTI-6 mini-controller set to +10°C (other temperature settings in the range of 0-80°C on request)

Connecting cable:
1.5 m standard length (other lengths on request)
Schuko plug
Protection rating:

up to IP 44 (EN 60529), protection class I

Hose fittings:

side 1: GEKA PLUS in brass (with a tee connector to insert the heater)
side 2: GEKA PLUS in brass

ETH HWI 19/25

Compact, delivery rubber hose with a heater mounted inside, designed for industrial water to prevent it from freezing in sub-zero ambient temperatures.


  • mini-controller mounted in the tee connector keeps the temperature of the medium constantly above the freezing point of water

  • special positioning of the heating element ensures much lower energy consumption than that of standard heated hoses – the appropriately impregnated heating element is placed inside the hose and is in direct contact with the medium

  • available in 19 mm and 25 mm diameters, and 10 to 60 metre lengths


  • water supply in field conditions: construction, power plant, mine or concrete mixing plant sites, large factories as well as military purposes

For ETH HWI 19/25 hose operation, it is mandatory to apply residual current circuit breakers (RCCB 30 mA) in the electrical installation.

Available on request.

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