I have a 105 gallon tank that I have always had trouble getting enough air in. I've had several Whistler type, 1, 2 and even 4 type bladder pumps, they eventually slowed down and stopped pumping. A repair kit for even one of them will cost more than the cost of this unit. and this thing moves some air, let me tell you. It should be noted that these pumps do get quite warm, so make sure there is adequate ventilation and also enclose enough hoses before entering your tank as the air can also get quite warm. But if you need warmth, then I can be a savior.
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