Here you go, sorry about the bad angle, this was the best I could do without removing the carb. I cut the bottle in half then cut a hole on the lid end then cut about 10 - 15 verticle slits along the bottle at the lid end to allow it to stretch over the filter then I secured it with a load of electrical tape. Alternatively you can just cut a 48mm ish diamater hole and put the bottle on the carb first then put the pod filter on.

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