The Random Flow Generator® Nozzle

The only random flow generating device with no moving parts…

The primary focus of the RFG or Random Flow Generator® Nozzle, is to transform the flow from your return line or closed loop system, into a more beneficial randomized flow pattern.


  • Can help to create a more natural water movement within your aquarium.
  • Helps to lift and suspend detritus and other debris so your filtration can remove them.
  • Allows you to increase flow without damaging corals or creating a sand storm within your aquarium.
  • No additional electricity, heat or noise.
  • Easy to install – no tools, glue or plumbers tape required.
The Patented Random Flow-Generator® Nozzle

A Truly Randomized Flow

For your saltwater and freshwater aquarium system

No Moving Parts

The Random Flow Generator™ Nozzle is the ONLY random flow generating device on the market with no moving parts.

The patent pending design uses fluid dynamics to vary both the intensity and direction of the flow, as it exits the nozzle. This means it will never get stuck, stop working or require internal maintenance.

 It’s a simple solution to generating random flow in your aquarium. 

How Does the RFG work?

The internal structure of the RFG Nozzle is comprised of a 5-vane helix that spirals nearly the entire length of the nozzle with a central jet.

 Each vane of the helix is connected to an eductor at the base. Together, they form a set of internal channels.

 These channels along with the center jet, work together to pull the flow in one direction or the other as it exits the nozzle creating he randomization effect.


Will it Work In My Tank?

The RFG Nozzle available in multiple sizes and compatible with 1/2in and 3/4in Loc-line® as well as 1in modular hose and schedule 40 PVC.

Adapters and Kits available for

Is the Random Flow Generator® like an Accelerator Nozzle?

The Random Flow Generator™ Nozzle does share  some similarity with the standard eductor/panductor nozzles. Eductors and panductors traditionally are designed to push as much water as possible as far as possible – basically increasing the flow through acceleration.

The RFG nozzle on the other hand takes a different approach. By randomly changing the direction and intensity of the flow as it exited the nozzle, the RFG can create a very unique flow pattern that, in the past, could only be achieved with moving parts, such as internal gears and other mechanics.

The result is a wide, almost wave-maker like flow pattern that allows you to increase flow from your return pump or closed loop system, without creating a destructive force within the aquarium.

See the Patented Random Flow Generator® Nozzle in Action

Find the Random Flow Generator for Your Aquarium

Pre-configured flow kits, adapters and fittings design for just about every aquarium brand on the market today.
Adding the patented Random Flow Generator® to your aquarium has never been easier.

Random Flow Generator for Red Sea
Random Flow Generator for WaterBox
Random Flow Generator for CADE
Random Flow Generator for Fluval
Random Flow Generator for JBJ
Random Flow Generator for Lifegard Aquatics

upgrade your flow!

The Random Flow Generator is the easiest way to upgrade the flow in your reef tank.

The Flex-Series Random® Flow Generator Nozzle

The new Flex-Series RFG Nozzles may just be the most durable piece of equipment in your aquarium. Manufactured with a stiff rubber-like material, the Flex-Sereis is nearly indestructible, easy to clean, has better throughput and provides a wider flow pattern than the OG rigid model.

All around, the Flex-Sereis is the upgrade you have been waiting for.

Pre-Configured Flow Kits

featuing the Flex-Series Random Flwo Generator® Nozzle