{"product_id":"green-killing-machine-24w-uv-sterilizer-aqua-fit","title":"Green Killing Machine 24W — Internal UV Sterilizer 120 Gal Zigzag Flow Fresh \u0026 Saltwater - Aqua-Fit","description":"\u003cp\u003eThe Green Killing Machine (GKM) 24W by Aqua-Fit by AA Aquarium is the most powerful internal UV-C sterilizer in the GKM range, designed for freshwater and saltwater aquariums up to 120 gallons (450 liters). All-in-one system with built-in 120 GPH pump, sealed 24-watt UV bulb, control box, and adapter—5-minute installation with no tools or plumbing required.\u003c\/p\u003e\n\u003ch2\u003eBenefits of the Green Killing Machine 24W\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e24-watt UV-C radiation at 254 nm: maximum power to eliminate suspended algae, bacteria, yeasts, molds, and pathogens\u003c\/li\u003e\n\u003cli\u003ePatented Zigzag Flow design inside the casing to maximize UV light exposure time\u003c\/li\u003e\n\u003cli\u003eIntegrated 120 GPH (430 L\/h) pump with reduced flow in the bulb (70 GPH) for effective sterilization\u003c\/li\u003e\n\u003cli\u003eHelps combat cyanobacteria, dinoflagellates, ich, and velvet in both freshwater and saltwater\u003c\/li\u003e\n\u003cli\u003e12V DC ChildSafe power supply—safe for fish, plants, and invertebrates\u003c\/li\u003e\n\u003cli\u003eIndicator LED on the control box signals when to replace the UV bulb\u003c\/li\u003e\n\u003cli\u003eBonus filter sponge included\u003c\/li\u003e\n\u003cli\u003eUL, cUL, and GS certified by TÜV—the only internal UV sterilizer certified by Underwriters Laboratories\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation and use\u003c\/h2\u003e\n\u003cp\u003eThe GKM 24W attaches inside the aquarium with suction cups and can be positioned vertically, horizontally, or in a filtration sump. Assembled dimensions: 4\" x 4\" x 17\". The control box must remain outside the aquarium. For optimal results, let it run 24\/7 for the first 2 weeks, then connect to a timer (8 hours per day) to extend bulb life. Do not use simultaneously with medication—UV neutralizes chemical treatments.\u003c\/p\u003e\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUV-C power: 24 watts at 254 nm\u003c\/li\u003e\n\u003cli\u003ePower supply: 12V DC\u003c\/li\u003e\n\u003cli\u003ePump flow: 120 GPH \/ 430 L\/h (flow in the bulb: 70 GPH)\u003c\/li\u003e\n\u003cli\u003eCapacity: aquariums up to 120 gallons (450 liters)\u003c\/li\u003e\n\u003cli\u003eCompatibility: freshwater and saltwater\u003c\/li\u003e\n\u003cli\u003eAssembled dimensions: 4\" x 4\" x 17\"\u003c\/li\u003e\n\u003cli\u003eDouble Pin Connector\u003c\/li\u003e\n\u003cli\u003eBulb life: 6 to 9 months (continuous use)\u003c\/li\u003e\n\u003cli\u003eIncluded: 120 GPH submersible pump, sealed UV bulb, control box, DC adapter, filter sponge + bonus sponge, suction cups\u003c\/li\u003e\n\u003cli\u003eWarranty: 1 year against material and manufacturing defects (UV-C bulb excluded)\u003c\/li\u003e\n\u003cli\u003eCertifications: UL, cUL, GS (TÜV) — EPA Est. #093568\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAvailable formats — Green Killing Machine\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMini GKM 3W — aquariums up to 20 gal (80 L)\u003c\/li\u003e\n\u003cli\u003eGKM 9W — aquariums up to 50 gal (200 L)\u003c\/li\u003e\n\u003cli\u003eGKM 24W — aquariums up to 120 gal (450 L)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy choose this product from ReefSolution\u003c\/h2\u003e\n\u003cp\u003eThe Green Killing Machine 24W is the most powerful internal UV solution for large aquariums and reef systems with sumps. Complete your setup with the Green Killing Machine 9W for a secondary aquarium, Seachem Purigen for organic chemical filtration, or Seachem Clarity to quickly eliminate residual turbidity.\u003c\/p\u003e\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\u003ch3\u003eCan the Green Killing Machine 24W eliminate ich and parasites in aquariums?\u003c\/h3\u003e\n\u003cp\u003eThe GKM 24W helps reduce waterborne pathogens, including the free-swimming stages of ich (Ichthyophthirius). For complete parasite treatment, it should run 24\/7 in addition to fish observation and quarantine protocols.\u003c\/p\u003e\n\u003ch3\u003eCan the Green Killing Machine 24W be placed in a reef sump?\u003c\/h3\u003e\n\u003cp\u003eYes, the GKM 24W can be positioned vertically, horizontally, or directly in a sump. This is the recommended installation method for reef aquariums to keep the display clean.\u003c\/p\u003e\n\u003ch3\u003eWhat is the difference between the Green Killing Machine 9W and 24W?\u003c\/h3\u003e\n\u003cp\u003eThe GKM 9W treats up to 50 gallons with a 50 GPH pump. The GKM 24W treats up to 120 gallons with a 120 GPH pump and an internal flow rate of 70 GPH for faster sterilization of larger water volumes.\u003c\/p\u003e","brand":"Aqua-Fit","offers":[{"title":"Default Title","offer_id":46336531890347,"sku":"AA6671","price":169.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0513\/7108\/1899\/files\/639086368417953348AA6671.jpg?v=1774029354","url":"https:\/\/reefsolution.com\/en\/products\/green-killing-machine-24w-uv-sterilizer-aqua-fit","provider":"Aquarium ReefSolution inc.","version":"1.0","type":"link"}