Ultimate Nano Tank Return Line Upgrade Kit – 1/2in to 1/4in RFG

Add the Patented Random Flow Generator® to your Fluvial 13.5
Plus, may other Nano tank using our Return Line Adapters

  • Kit Includes:
    – Genuine Loc-Line® fittings to ensure a perfect fit.
    –  Loc-Line® 1/2in to 1/4in Y Reducer Fitting
    – 4 Sections of genuine 1/4in Loc-line®
    – 2 x 1/4in Random Flow Generator® Nozzles – RFG025

Suggested Flow Rates:


6 in stock (can be backordered)


The Ultimate Nano Tank Return Line Upgrade Kit is Directly compatible with 1/2in Loc-Line.  This kit also works with any of our Return Line Adapters, Modular Hose Converters and 1/2in ball fitting on your stock Fluvial 13.5 return line

* Adapters sold separability



The Patented Random Flow-Generator® Nozzle

The Random Flow Generator® Nozzle

The Only Random Flow Device With No Moving Parts.
The unique patented internal design of the Random Flow Generator® by Vivid Creative Aquatics, leverages fluid dynamics to randomly alter the direction of the flow as it exits the nozzle.

This internal helix design, pulls the central jet in on of 5 possible direction, but in only one direction at a time. The result is a broad wave-maker like motion but with no moving parts to wear out, no noise and no addition heat generated.

The Random Flow Generator® or RFG Nozzle can help to create a more natural, randomized flow pattern within an aquarium, pond, or other bodies of water.