Eheim ReeflexUV+e 500 WiFi UV Steriliser 9W (Model 3732)

The Eheim ReeflexUV+e 500 is the next generation of the proven Eheim ReeflexUV UV steriliser — now with fully integrated WiFi (WLAN) control via smartphone, tablet, or PC. Designed for freshwater and marine aquariums from 300L up to 500L, it quickly and effectively reduces or eliminates harmful bacteria, algae spores, fungi, viruses, and the infectious stages of fish parasites — delivering crystal-clear, biologically safer water with every pass.

At the heart of the ReeflexUV+e is Eheim's patented reflector technology — a unique arrangement of the 9W UV-C light source and a specially designed internal reflector that ensures UV-C radiation penetrates the water from multiple sides simultaneously. Unlike conventional UV sterilisers that irradiate the water from one side only, the ReeflexUV+e delivers twice the germicidal efficiency at the same wattage — with no complicated water deflection and no performance loss.

Fully integrated into the Eheim Digital ecosystem, the ReeflexUV+e 500 can be paired with other Eheim Digital products including the Eheim Professionel 5e filter and Eheim LEDcontrol+ for complete, connected aquarium management from a single app.

Key Features

• Integrated WiFi (WLAN): Full remote control via the free Eheim app — monitor and control steriliser operation via smartphone, tablet, or PC/MAC
• Patented reflector technology: Internal reflector mirrors UV-C radiation for multi-directional irradiation — twice as effective as conventional UV sterilisers at the same wattage
• 9W UV-C lamp (2G7): Provides powerful germicidal output for aquariums up to 500 litres
• No performance loss: Water flows directly around the UV-C burner without detours — full UV exposure with no flow restriction
• Reduces and eliminates: Free-floating bacteria, fungi, viruses, algae spores, and infectious swarmers of fish parasites in both freshwater and marine water
• Eheim Digital compatible: Pairs wirelessly with Eheim Professionel 5e filters and Eheim LEDcontrol+ for integrated smart aquarium management
• AUTO-OFF safety system: Automatically switches off when the unit is opened — UV-C radiation is completely contained during maintenance
• 16/22mm hose connection: Compatible with standard Eheim and other aquarium filter plumbing
• Freshwater and marine compatible: Suitable for all aquarium water types
• Made in Germany: Eheim's trademark build quality, materials, and reliability

Compatibility

• Suitable for: Freshwater and marine aquariums from 300L to 500L
• Flow rate: 400–800 l/h (sterilisation: 400 l/h / clarification: 800 l/h)
• Hose connection: 16/22mm
• UV-C lamp: 9W — 2G7 socket (replacement lamp part number 4111010)
• WiFi connectivity: 2.4GHz WLAN — compatible with iOS and Android via Eheim app
• Smart sync: Eheim Professionel 5e filter, Eheim LEDcontrol+
• Power: 9W / 230V

Product Details

• Brand: Eheim
• Model: ReeflexUV+e 500
• Model Number: 3732 (AU: 207220)
• Type: WiFi UV Steriliser / UV Clarifier
• UV-C Lamp: 9W — 2G7 (part number 4111010)
• Aquarium Size: 300L – 500L
• Flow Rate: 400–800 l/h
• Hose Connection: 16/22mm
• WiFi: 2.4GHz WLAN — iOS and Android
• Made in: Germany
• Suitable For: Freshwater and marine aquariums

The Eheim ReeflexUV+e 500 is ideal for aquarium keepers managing medium to large freshwater or marine aquariums who want WiFi-controlled, highly efficient UV sterilisation with the reliability and build quality that Eheim is trusted for worldwide.