TEST CAP KNOCKOUT 4" *Brand Name: Sioux Chief *Sub Brand: Knock-Out *Diameter: 4 in. *Material: ABS *Product Type: TestCap Knockout *Schedule Type Number: 40 *Number in Package: 1 *Average Lead Content: Lead-free *Fits For: DWV System *Usage: DWV Testing *Color Family: White *. *4 in.