1/4in Random Flow Generator® Flow Kit – 1/4 Flex-Series RFG

Works With

Waterbox Cube Series 

Plus DeskMate, Fluval Spec V/Evo, LifeGard Aquatic…
Plus, many other aquariums using the included Adapter – scroll down for full list

Kit Includes:

  • The Patented Random Flow Generator® Nozzle
    1/4in Flex-Series Random Flow Generator® Nozzles – RFG050-FLX
  • New Flex-Series Adapters
    – WB165050 – 16.5mm Flex Adapter
    – MPA1320LL050 – 13 & 20mm to 1/2 Flex Adapter
  • Genuine Loc-line
    Genuine 1/2 to 1/4in Loc-Line® reducer and 1/4in fittings

Includes the New Flex Series Random Flow Generator®

RFG-FLXExtremely Durable and Flexible Material
Manufactured with a reef-safe TPU (Thermoplastic Polyurethane)




10 in stock (can be backordered)

Broad Compatibility

The 1/4in Random Flow Generator Return Line Upgrade Kit is directly compatible with a wide variate of nano aquariums

  • Waterbox Cube
  • Waterbox Peninsula Mini
  • Eshopps Deskmate® Collection
  • Fluval Spec V/Evo
  • Fluval 13.5 & larger
  • Reef Casa
  • Imagitarium
  • LifeGard Aquatics
  • Innovative Marine Nuvo Fusion Series

Includes the Flex-Series Random Flow Generator ® Nozzle


RFG Flex Series Nozzle will fit genuine Loc-Line® brand modular hose but also adapt to fit other similar sized modular hose fittings.

The RFG Flex Series is directly compatible with a wider range of aquariums and modular hose designs.


Made with a strong, extremely durable and flexible material, the RFG Flex Series won’t crack, it can’t break and has superior durability.
It’s also extremely easy to clean, since most algae and bio films simply slide right off with minimal effort.

The Patented Random Flow-Generator® NozzleA Trusted Design

The RFG Flex Series maintains the patented design of the Random Flow Generator® Nozzle. The design continues to be trusted by aquarium hobbyists and aquatic industry users alike. The RFG Flex Series will build on this trust earned over the years by delivering a new level of durability, flexibility and an enhanced functionality.