Can you coat your vents and drains with TPO or PVC?
What is the difference between the Ex-flow and M-105 vents?

Just want to thank you for your generous support and coming out to hit that golf ball.  Without people like Marathon this tournament and the money raised could not be possible.  Thank you for coming all the way from Buffalo.   Hopefully this will be a tradition for you.

— Jimmy Cox, B&L Wholesale Supply, Rochester, NY