BEST ANSWER:Yes, this has everything you need to replace your existing arm. In the picture you can see two little rings on either side. Lifting on those rings will disengage the cam lock and the stem (long part with two bends and rubber grip) will come loose. Then when you want, you just push it back into the female part and ensure those two little arms attached the the rings are down and it's locked again.
BEST ANSWER:Yes, this has everything you need to replace your existing arm. In the picture you can see two little rings on either side. Lifting on those rings will disengage the cam lock and the stem (long part with two bends and rubber grip) will come loose. Then when you want, you just push it back into the female part and ensure those two little arms attached the the rings are down and it's locked again.
It only comes with the male fitting welded on. The picture shows the female on it too I don't have a robobrew so I don't know if it will work on yours.
I used this one to replace the 1/2 NPT connected arm that came with the Mash & Brew w/ Pump I picked up, just because I didn't get a quality seal on the originally provided arm. The use of the camlock made a big difference. I am now using cam locks exclusively in my brewing setup.
I got this to use with my EBIAB system that I built. It feeds a CIP ball that I have mounted in my lid for mash circulation and clean up. I think it would be difficult to make your own for less $. I also got the whirlpool arm from them.
