The Easiest Way to Transform Your Flow The Vivid Creative Aquatics WATERBOX® Flow Kit with the Random Flow Generator® Nozzle will transform the flow in your aquarium. The RFG Nozzle uses a patent pending design that leverages fluid dynamics to randomly vary the direction and intensity of the flow exiting the nozzle. Simple Upgrade Each kit includes everything needed to upgrade the return line of your Waterbox aquarium with a Random Flow Generator. Installation is a snap and takes just a few minutes. For the Cube and Peninsula series tanks, Vivid Creative Aquatics recommends upgrading the return pump with a SICCE Syncra series pump for the best results Works With Red Sea REEFER G2 Recommended for Gen 2 dual outlet (on either side of the overflow) models of the Red Sea Reefer 525 and below Waterbox Aquariums Waterbox Cube, Peninsula Mini series and larger tanks Waterbox aquarium with DN15 stock return nozzles ( check your aquariums specs here ) Plus, many other aquariums using the included Adapter – scroll down for full list Kit Includes: The Patented Random Flow Generator® Nozzle 1/2in Flex-Series Random Flow Generator® Nozzles – RFG050-FLX New Flex-Series Adapters – 2530-075 Multidapter™ – WB165050 Modular hose converter – MHA2021LL050 Modular hose Adapter Genuine Loc-line Genuine 1/2in Loc-Line® fittings Includes the New Flex Series Random Flow Generator® Extremely Durable and Flexible Material Manufactured with a reef-safe TPU (Thermoplastic Polyurethane)