High UV efficiency: A reflective stainless-steel chamber increases UV reflection, and allows greater exposure to UVC light. Deep clean your koi ponds, above-ground pools, cold plunges, and bathtubs of up to 500-2000 gallons. In-Line UV Light: The device provides an independent environment for fish tank/above-ground pool/cold plunge/hot tub water purification. Avoid direct contact between people and ultraviolet rays Secondary Pollution, No change in pH or the general chemistry of the water. 5 Kinds of Hose Connectors: We have 5 kinds of hose connectors. You can use it for aquarium tanks, swimming pools, your garden pool, or for Whole House Water Purification. 180-Day Warranty: We stand behind the quality of our product and offer a 180-day warranty. If you encounter any issues during the warranty period, please don't hesitate to reach out to us. We aim to provide excellent customer service within 24 hours. Important NOTE: This device is not submersible, do not fully immerse the device in water, and not suitable for salt water!!! Ultraviolet rays are harmful to the human body. Please avoid exposing your eyes and skin to ultraviolet rays. EPA EST NO.: 96998-CHN-1 › See more product details