Firestone Building Products, Carmel, Ind., introduces drain inserts, featuring an aluminum drain assembly with a red strainer. The insets use an EPDM sealing device to form a more watertight seal as water pressure increases, unlike conventional inserts that rely on a screw assembly. They are available in 3- or 4-inch diameters and can be used in any Firestone roofing system where an existing drain is to be left in place.