Shampoo bottle drainer

This is a coupler with a built-in funnel for draining leftover shampoo or other liquid from the old bottle to a new bottle. It should work with any bottle that has a 28-400 closure (https://www.paramountglobal.com/knowledge/bottle-neck-thread-finish/), which is used for the Suave Men 28-oz shampoo bottles I use. This coupler is vented to prevent a pressure differential between the bottles.