I saw these but I am not sure it works with the dishwater. I think its meant just for reverse osmosis water filtration systems. https://www.amazon.com/Watts-116101-Non-Monitored-Filtration-Auxiliary/dp/B0018MXG96/ . Maybe something like this is better but you'd still need the airgap for the washer: https://www.amazon.com/MENATT-Kitchen-Drinking-Purifier-Finished/dp/B08C734JZ8/