The refill is not currently recyclable, but what you can do is simply pop it in your general waste and it will break down within a 1 - 2 years (not decades!) with no detrimental environmental impact, as there will be no nasty chemicals to leach out.
The refill is not currently recyclable, but what you can do is simply pop it in your general waste and it will break down within a 1 - 2 years (not decades!) with no detrimental environmental impact, as there will be no nasty chemicals to leach out.