Product review (5 stars): Fills a need
I had an existing near-horizontal connection of a dishwasher drain hose just above a drain trap, in a cramped area with no vertical pipe segment above the trap tall enough to use any alternative drain, to which I had to also connect the drain from a new Reverse Osmosis system. I was able to insert this in series with the dishwasher drain hose, so that the plastic spigot to the right in the image was captive inside the integral clamped rubber end of the dishwasher drain hose. Voil! Adequate drainage for both the dishwasher and RO system. Were it not for this specialty item I would have had to connect the RO system BELOW the trap, which is very bad practice.