Product Discontinued: Smartbin to Smartbin Air Upgrade Packs
Since plastic manufacturers keep modifying/servicing and sometimes discontinuing their molds, the new upgrade packs will no longer fit your old Smartbins.
Here is the alternate option if you want to upgrade your Smartbins to Smartbin Airs:
The difference between your old Smartbins and Smartbin Air is the mesh which is stuck to the lids. We can send the mesh to you and you'll have to get your existing lids cut and fix those meshes with super glue like feviquick. (Water based glues won't stay). You can either do it yourself or get a carpenter or handyman to do it for you.
If this works for you, please order the meshes from this link.