Green Killing Machine Internal Aquatic UV Sterilizer Kit - 9 Watt - 50 Gal

• 5-minute installation without any tools.
• Our Sealed UV Bulb has water flow in direct contact with the UVC lamp for increased efficiency.
• 4 sizes that fit most aquariums: 3 Watt internal 3 Watt Clip-On (40~80L) 9 Watt (81~200L) & 24 Watt (201~450L).
• Made in an EPA registered establishment.