{"product_id":"aquael-flow-inline-aquarium-heater-300w-500w","title":"AquaEl Flow Inline Aquarium Heater – 300W \u0026 500W","description":"\u003cp\u003e\u003cem\u003eAquarium, livestock, and canister filter sold separately. Photos show packaging artwork for size and feature reference.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eAquaEl Flow\u003c\/strong\u003e is an \u003cstrong\u003eexternal inline aquarium heater\u003c\/strong\u003e that mounts on the return hose of a canister filter, so there is no heater inside the tank. Heated water is mixed in the hose and returned evenly through the aquarium. That keeps the display clear on a TRUVU acrylic tank and pairs naturally with an \u003ca href=\"\/products\/aquael-ultramax-canister-aquarium-filter-25-to-185-gallon\"\u003eAquaEl UltraMax canister filter\u003c\/a\u003e. Choose the 300W model for 26–160 gallon aquariums or the 500W model for 80–265 gallon aquariums. Both sizes are rated for freshwater and saltwater.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeats outside the tank:\u003c\/strong\u003e the Flow mounts on the canister filter return hose, so nothing hangs in the aquarium. Your aquascape and viewing panel stay clear.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEven temperature:\u003c\/strong\u003e because the heater sits on the outgoing hose, warmed water is mixed and distributed as it re-enters the tank.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSmart Heating System (SHS):\u003c\/strong\u003e AquaEl's intelligent power control adjusts output to the aquarium and conditions, so temperature stays steady and the heater uses only the energy it needs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLED set and current temperature:\u003c\/strong\u003e the display shows the temperature you programmed and the current water temperature.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOne Touch control:\u003c\/strong\u003e change the set temperature with a single button.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrecise range:\u003c\/strong\u003e holds temperature to ±0.9°F (±0.5°C) from 68 to 91°F (20 to 33°C).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSafety shutoff:\u003c\/strong\u003e electronic temperature sensors help protect against overheating and automatically turn the heater off if water flow stops.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFits common canister hoses:\u003c\/strong\u003e works on 16\/22 mm (5\/8 in ID) or 19\/25 mm (3\/4 in ID) hoses, including both UltraMax sizes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFreshwater or saltwater:\u003c\/strong\u003e AquaEl rates the Flow for both freshwater and marine aquariums.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSizes \u0026amp; Specs\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x:auto;width:100%;-webkit-overflow-scrolling:touch;\"\u003e\n\u003ctable style=\"width:100%;min-width:720px;border-collapse:collapse;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"col\" style=\"white-space:nowrap;text-align:left;padding:8px;\"\u003eSpec\u003c\/th\u003e\n      \u003cth scope=\"col\" style=\"white-space:nowrap;text-align:left;padding:8px;\"\u003eFlow 300W\u003c\/th\u003e\n      \u003cth scope=\"col\" style=\"white-space:nowrap;text-align:left;padding:8px;\"\u003eFlow 500W\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"white-space:nowrap;text-align:left;padding:8px;\"\u003eFits aquariums\u003c\/th\u003e\n      \u003ctd style=\"padding:8px;\"\u003e26–160 gal (100–600 L)\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003e80–265 gal (300–1,000 L)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"white-space:nowrap;text-align:left;padding:8px;\"\u003ePower\u003c\/th\u003e\n      \u003ctd style=\"white-space:nowrap;padding:8px;\"\u003e300 W\u003c\/td\u003e\n      \u003ctd style=\"white-space:nowrap;padding:8px;\"\u003e500 W\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"white-space:nowrap;text-align:left;padding:8px;\"\u003eTemperature range\u003c\/th\u003e\n      \u003ctd style=\"white-space:nowrap;padding:8px;\"\u003e68–91°F (20–33°C)\u003c\/td\u003e\n      \u003ctd style=\"white-space:nowrap;padding:8px;\"\u003e68–91°F (20–33°C)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"white-space:nowrap;text-align:left;padding:8px;\"\u003eAccuracy\u003c\/th\u003e\n      \u003ctd style=\"white-space:nowrap;padding:8px;\"\u003e±0.9°F (±0.5°C)\u003c\/td\u003e\n      \u003ctd style=\"white-space:nowrap;padding:8px;\"\u003e±0.9°F (±0.5°C)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"white-space:nowrap;text-align:left;padding:8px;\"\u003eHose size (ID \/ OD)\u003c\/th\u003e\n      \u003ctd style=\"padding:8px;\"\u003e16\/22 mm (5\/8 in) or 19\/25 mm (3\/4 in)\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003e16\/22 mm (5\/8 in) or 19\/25 mm (3\/4 in)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"white-space:nowrap;text-align:left;padding:8px;\"\u003eInstallation\u003c\/th\u003e\n      \u003ctd style=\"padding:8px;\"\u003eExternal, on the canister filter return hose\u003c\/td\u003e\n      \u003ctd style=\"padding:8px;\"\u003eExternal, on the canister filter return hose\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"white-space:nowrap;text-align:left;padding:8px;\"\u003eFreshwater \/ saltwater\u003c\/th\u003e\n      \u003ctd style=\"white-space:nowrap;padding:8px;\"\u003eYes\u003c\/td\u003e\n      \u003ctd style=\"white-space:nowrap;padding:8px;\"\u003eYes\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth scope=\"row\" style=\"white-space:nowrap;text-align:left;padding:8px;\"\u003eSKU\u003c\/th\u003e\n      \u003ctd style=\"white-space:nowrap;padding:8px;\"\u003eAE38146\u003c\/td\u003e\n      \u003ctd style=\"white-space:nowrap;padding:8px;\"\u003eAE38147\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003csmall\u003eSpecs from AquaEl USA (Flow Heater 2.0). Gallon ranges are AquaEl's heater capacity ratings, not tank freight sizes. AquaEl may update parts and ratings between production runs.\u003c\/small\u003e\u003c\/p\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eAquaEl Flow inline aquarium heater (wattage you select)\u003c\/li\u003e\n  \u003cli\u003eTwo mounting brackets\u003c\/li\u003e\n  \u003cli\u003eHose clamping nuts, plus hose adapters and fittings as packed by AquaEl\u003c\/li\u003e\n  \u003cli\u003eAquaEl instruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eAquarium not included. Canister filter and hoses sold separately.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eFAQ\u003c\/h2\u003e\n\u003ch3\u003eWhich Flow size do I need for my TRUVU tank?\u003c\/h3\u003e\n\u003cp\u003eChoose the \u003cstrong\u003e300W\u003c\/strong\u003e (26–160 gal) for most TRUVU aquariums from about 50 to 125 gallons. Choose the \u003cstrong\u003e500W\u003c\/strong\u003e (80–265 gal) for larger tanks, including our 125 and 125L and up, or when you want more heating capacity. In the overlap range (about 80–160 gallons), either size can work; the 500W has more headroom. Not sure which one fits your tank? \u003ca href=\"\/pages\/contact\"\u003eContact us\u003c\/a\u003e before you order.\u003c\/p\u003e\n\u003ch3\u003eHow is the Flow heater installed?\u003c\/h3\u003e\n\u003cp\u003eIt installs \u003cstrong\u003eoutside the aquarium\u003c\/strong\u003e on the return (outlet) hose of an external canister filter. There is nothing to place in the tank, so a TRUVU closed top stays clear. See the AquaEl manual for the exact hose setup.\u003c\/p\u003e\n\u003ch3\u003eWill it work with an AquaEl UltraMax canister filter?\u003c\/h3\u003e\n\u003cp\u003eYes. The Flow accepts both 16\/22 mm (5\/8 in) and 19\/25 mm (3\/4 in) hoses, which matches the \u003ca href=\"\/products\/aquael-ultramax-canister-aquarium-filter-25-to-185-gallon\"\u003eUltraMax 1000 and UltraMax 2000\u003c\/a\u003e. It can also be used with other canister filters that use those hose sizes. Browse our \u003ca href=\"\/collections\/canister-filters\"\u003ecanister filters\u003c\/a\u003e and \u003ca href=\"\/collections\/aquarium-heater\"\u003eaquarium heaters\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eCan I use it on a saltwater tank?\u003c\/h3\u003e\n\u003cp\u003eYes. AquaEl rates the Flow for both freshwater and marine aquariums. Shop our \u003ca href=\"\/collections\/freshwater-fish-tank\"\u003efreshwater acrylic fish tanks\u003c\/a\u003e and \u003ca href=\"\/collections\/saltwater-aquarium\"\u003esaltwater aquariums\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat warranty does it have?\u003c\/h3\u003e\n\u003cp\u003eThe Flow heater is covered by AquaEl's manufacturer warranty. Please see the AquaEl packaging and manual for details. TRUVU does not provide a separate warranty on AquaEl products.\u003c\/p\u003e","brand":"AquaEl","offers":[{"title":"300W (26–160 gal)","offer_id":67946453008458,"sku":"AE38146","price":114.99,"currency_code":"USD","in_stock":true},{"title":"500W (80–265 gal)","offer_id":67946453041226,"sku":"AE38147","price":124.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0107\/9875\/9994\/files\/aquael-flow-heater-300w-AE38146.jpg?v=1794331964","url":"https:\/\/truvuaquariums.com\/products\/aquael-flow-inline-aquarium-heater-300w-500w","provider":"TRUVU Aquariums","version":"1.0","type":"link"}