{"product_id":"knifel-submersible-water-pump-400-gph-ultra-quiet-25w-adjustable-flow-6-5-ft-lift","title":"Knifel Submersible Water Pump 400 GPH Ultra-Quiet 25W — Adjustable Flow, 6.5 ft Lift","description":"\u003cp\u003e\u003cstrong\u003eKnifel Submersible Water Pump is a compact, 400 GPH, ultra-quiet fountain pump engineered to circulate and aerate water in aquariums, fountains, and hydroponic setups.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact 25W submersible pump combines a high-efficiency motor with upgraded rotor and copper components to reduce noise and extend operational life. It delivers up to 400 gallons per hour and can lift water to 6.5 feet while offering an adjustable flow control knob for precise pressure and volume settings. Tool-free disassembly makes maintenance quick, and the four rubber suction feet provide stable placement on smooth surfaces.\u003c\/p\u003e\n\n\u003ch3\u003eHow quiet and durable is the pump during daily use?\u003c\/h3\u003e\n\u003cp\u003eThe Knifel pump uses higher-grade rotor materials and copper wiring to minimize vibration and noise while improving longevity. It was designed to run smoothly for continuous operation in indoor water features and aquariums without producing a loud motor hum.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUpgraded rotor and copper components for lower noise and longer life\u003c\/li\u003e\n  \u003cli\u003e25W motor balances power with efficiency\u003c\/li\u003e\n  \u003cli\u003eFour rubber suction cups reduce vibration transfer to surfaces\u003c\/li\u003e\n  \u003cli\u003eSuitable for continuous use in enclosed and open systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I control the water flow for different setups?\u003c\/h3\u003e\n\u003cp\u003eThe pump includes an adjustable knob that lets you dial in the exact water pressure and flow you need for fountains, spouts, or circulation. This makes it straightforward to match pump output to delicate aquatic environments or high-visibility water features.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eVariable flow knob for precise adjustment\u003c\/li\u003e\n  \u003cli\u003eMaximum flow: 400 GPH; maximum lift: 6.5 ft\u003c\/li\u003e\n  \u003cli\u003eWorks for both gentle circulation and stronger fountain effects\u003c\/li\u003e\n  \u003cli\u003eFlow control supports energy-efficient operation at lower settings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is maintenance and installation?\u003c\/h3\u003e\n\u003cp\u003eInstallation is quick — the compact housing and long power cord make placement flexible, and the pump’s base secures with four strong suction cups. For cleaning, the unit detaches without tools and can be rinsed or wiped clean to remove debris and buildup.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTool-free disassembly for fast cleaning\u003c\/li\u003e\n  \u003cli\u003eCompact design hides easily in tanks and fountain basins\u003c\/li\u003e\n  \u003cli\u003eDurable power cord length for convenient positioning\u003c\/li\u003e\n  \u003cli\u003eSuction-cup base keeps the pump steady on smooth surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat applications are best suited to this pump?\u003c\/h3\u003e\n\u003cp\u003eIts combination of quiet operation, adjustable output, and corrosion-resistant construction makes this pump versatile for indoor and outdoor uses. Recommended for aquariums, tabletop fountains, pond spouts, and small hydroponic systems where reliable circulation and aeration are needed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAquariums and fish tanks for oxygenation and water circulation\u003c\/li\u003e\n  \u003cli\u003eIndoor and outdoor decorative fountains or water features\u003c\/li\u003e\n  \u003cli\u003eSpouts and waterfalls with lift requirements up to 6.5 feet\u003c\/li\u003e\n  \u003cli\u003eSmall hydroponic setups requiring consistent water movement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Knifel Submersible Water Pump is ideal for hobbyists and home owners who want a reliable, quiet pump that’s easy to hide and maintain. Choose this model if you need adjustable flow, continuous operation for aquatic life support or decorative displays, and a compact unit that won’t draw attention to itself.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is the maximum flow and lift of this pump?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The pump delivers up to 400 GPH and can lift water to a maximum height of 6.5 feet.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the pump easy to clean and service?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it detaches without tools for quick cleaning, and parts can be rinsed to remove debris.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Knifel","offers":[{"title":"Default Title","offer_id":56833067090260,"sku":"B0CP21QVBH","price":48.18,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1063\/2652\/4244\/files\/knifel-front-view-pump_6e2925af-eac1-41fd-ab9b-f57b36ef73de.jpg?v=1787037009","url":"https:\/\/gardenluxe.co.uk\/products\/knifel-submersible-water-pump-400-gph-ultra-quiet-25w-adjustable-flow-6-5-ft-lift","provider":"Gardenluxe Uk","version":"1.0","type":"link"}