Zoo Med ReptiTherm Under Tank Heater U.T.H 4W, 4 in x 5 in, Mini

If your little reptile friend needs gentle, around-the-clock warmth, the Zoo Med ReptiTherm Under Tank Heater in the 4-watt Mini size is a thoughtful place to start. Measuring 4 inches by 5 inches, this compact heater is sized for smaller terrariums and the species that live in them. Zoo Med designed it as an ideal 24-hour heat source for tropical or temperate reptiles, so your pet can stay cozy day and night.

Why owners reach for the 4-watt Mini ReptiTherm U.T.H.:

• The 4-watt rating makes this a low-wattage option, which Zoo Med describes as an inexpensive way to add belly warmth.
• Compact 4-inch by 5-inch footprint suits smaller terrariums where a full-size pad would be too much.
• Works as a primary or secondary heat source, giving you flexibility in how you set up your habitat.
• Built for tropical or temperate reptilian species, so it fits a wide range of pets.
• Contains a solid state nichrome heating element for steady, dependable warmth.
• Permanently adheres to your terrarium, forming a solid bond that Zoo Med says helps with optimum heat transfer.
• Provides heat from below, a placement many keepers prefer for ground-dwelling reptiles.
• UL and cUL approved, with GS, TuV, and CE approval noted for Europe.
• Zoo Med highlights it as an excellent secondary heat source to pair with other equipment.
• Runs continuously as a 24-hour heat source, so the warmth your pet relies on stays consistent.

Because the ReptiTherm U.T.H. bonds permanently to the glass, take a moment to plan placement before you press it on, since the bond is meant to be solid and is not designed to be peeled up and moved later. Once it is set, you have a quiet, low-wattage warmer working steadily for your smaller scaly companion, ready to provide the same gentle belly heat hour after hour. To keep the temperature dialed in, many keepers pair an under tank heater like this Mini with a dedicated thermostat so warmth stays right where your reptile is happiest and never climbs higher than you intend. For a small enclosure that needs reliable, fuss-free warmth, it is a simple, sensible upgrade for the comfort of your pet.