JBL ProTemp Undergravel Heater b20 III

Modern substrate heating for freshwater aquariums to promote plant growth

• b20 - 4.9m Heating Cable with 30 slotted suction cups - Up to 200L
• An undergravel heating cable provides a natural-like thermal flow through the substrate and thus promotes the transport of nutrients to the roots
• Easy to install: place the heating cable in loops on the bottom panel of the aquarium, fasten with the suction cups
• The rising, heated water causes the colder water to flow in and thus ensures water circulation IN the substrate. In this way, the substrate also becomes a natural aquarium filter
• Large cross-section of the heating cable for more power, 24 V safety voltage against hazards, high-quality power supply unit, spring clips allow mounting without tools
• Package contents: untergravel heating cable for aquariums, incl. electr. transformer, heating cable with cold and warm conductor, suction cup attachment