This kit is for the guy that bought mag drive pumps that have 110v kit installed. We have found out the mag drive 12v pump is not powerful enough to push threw 110v pump to supply enough oxygen to bait. So this kit will add another danco to your tank so each pump will have its own danco. I am selling this at our cost for those guys that have got new mag drive 12vt pump and 110vt pump kit. If you go to our how to videos there will be a video how to install it. Tools will need 1 1/4 bit and 5/16 bit phillips screwdriver and drill. Only take a few mins to install. This will allow each pump to have its own danco venturi.