This BrewZilla All Grain Brewing System Whirlpool Arm is made out of 304 stainless steel and fits both the 35L & 65L units. The arm attaches to the female camlock fitting on your system and replace the existing recirculation pipe.
Once installed it allows you to stir your wort with the BrewZilla's internal pump. Doing so helps circulate your wort for better hop extraction during the whirlpool stage, it also helps by centralizing the hot break.
Using the whirlpool arm while the immersion chiller is cooling helps speed up the process. This product only works on the Robobrew.