These funnels is made of durable, food-grade plastic. The smooth inner surface makes it easy to clean and sanitize. And the stem fits easily into carboys.
8, 10 and 12' Funnels comes with a 4″ diameter, fine-mesh straining screen, and the interior has a notch around the circumference where the screen rests securely.
4.5" Funnel does not come with straining screen.