I modded a 'Sure Flow' maxi-jet mount and just used a two-part epoxy from the hardware store to both seal magnet and join it to mount. You could superglue it to the powerhead, but I wanted to keep the swivel feature. Swivel. I also modded a Triton Aquatics Gulf Stream II mount. Since it's made of poly, I used ICgel. Worked fine. I need to go back and seal that magnet though.