Helix Pond Skimmer is a new concept in pond skimmer versatility, the Helix combines fish safe skimming in a small footprint, with room to spare for options like auto-fills, overflows, and additional mechanical filtration. The Helix Pond Skimmer is designed to with either external or submersible pumps, the Helix is quickly becoming the first choice in pond skimmers. Helix skimmers are 100% fish safe units and will keep your fish, frogs and other visitors out of your pump. The Helix combines the best of European skimmer features, koi skimmers and water garden products. The floating pre-filter makes frog and fish obstructions a thing of the past. It truly is a safe skimmer for fish and other marine life. The Helix is heavy-duty and easy to conceal in the landscape. It is user-friendly for submersible and external pump applications and can handle flow rates of 1,500-8,000 gallons per hour. The Helix can be used for water gardens, koi ponds, lakes and hybrid ponds, and it is equipped with stainless-steel hardware so you do not have to worry about the hardware rusting if you need to salt your pond.