This should be standard issue! Eliminates odor and bugs/critters from coming up your drain pipe. Simple installation, takes 9 seconds.
I'm surprised the plumbing industry is so un-innovative... you find/cannot buy these anywhere. Thank you DoMyOwnPestControl!
I have a basement shower that had a constant stench coming up from the drain trap. The trap is vented but for some reason the issue persisted. I usually resorted to dumping Clorox down the drain but this just made the basement that I worked so hard to finish smell like chlorine for days. I took a chance on this product and so far (it has been about a week) it has worked great! No stench and the drain empties as normal. These are certainly pricey, but if it keeps working as it has then it is certainly with the price.