Designed as an inline heater for the Rena SmartFilter or XP Canister Filters, the RENA SmartHeater attaches to the intake tube of the filter to keep clutter out of the main tank. The RENA SmartHeater is the most technically advanced aquarium heater available delivering a wide temperature range (69 - 93° F) and an LED warning alert system. The LED alert flashes when water is +/- 5° F from the set point. The RENA SmartHeater is made of unbreakable plastic resin and is safe to the touch, even when heating. The unique tubular design actually flows water through it for consistent heating. It works in any position, horizontal or vertical, heating the aquarium by itself or when attached to a RENA filter. For aquariums up to 90 gallons.

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