I've got a product line of air filters on Amazon and they are broken out into 40 different ASINs. The main factor that makes them each differnt is that they are different sizes. The problem is that none of them are ranking well and the reviews across all of them are 1-2 ratings max. I was thinking that I would make a parent product and then list all of the 40 child ASINs (which are the sizes) as the children.
The desired result would be that the reviews could now be combined and build momentum for the product line.
Is there anything I'm missing here? Is this the right way to think about it? Are there big disadvantages to this approach?
Thanks for any input that you may have.