The P-832 Disposable Static Mixer has 32 elements and is 24 inches long. The OD is 1 inch. This mixer is used with the P-658 Mega Valve and the CD250 High Volume Epoxy Dispenser. By using an inexpensive static mixer, clean-up is limited to disposal of the mixer at the end of the day. No other purging or flushing is required. The P-832 is sold individually.