Product review (2 stars): Magnet is way too weak
This gasket is completely useless. I have an old Subzero 532. This gasket was relatively easy to install (recommend soaking in hot water how a while to soften it up, loads of good YouTube videos showing how to do this).

However, as many other reviews on different sites show, this gasket just doesn't stick. The magnets are way too weak. it's useless. The only way to get the door to stay closed is to push the door really hard for a couple of seconds.

I ended up getting some rare earth bar magnets, cutting open the gasket on the inside edge and then inserting them into the gasket. This worked very nicely and the door now closes. But this product is of low quality, I wouldn't recommend it. Not that you have much choice as SubZero no longer manufacture an official part for this fridge.