Aqua One ProVac features a clever priming bulb handle – so your hands stay dry and out of the aquarium every time you use it.The ProVac makes aquarium maintenance easy for you – and great for your fish! Using it, you can safely perform a water change, while cleaning debris and waste from your gravel at the same time.Features & Benefits:4.5° outletIn line priming bulbGravel filterHelps to prevent the hose from kinkingMakes starting easyPrevents gravel escaping into the bucketSuitable For: Coldwater, Tropical & Marine Aquariums