Description
Mask (#8414) 25mm (1″) OD tapered & 2 diaphragms: 12mm (1/2″) aperture Mask (#8415) 20mm (3/4″) OD tapered & 2 diaphragms: 8mm (5/16″) aperture Mask (#8416) 20mm (3/4″) OD Offset & 2 diaphragms: 8mm(5/16″) aperture, Mask (#8413) 40mm (1 1/2″) OD offset & diaphragm: 20mm (3/4″) aperture & ET Tube adaptor (#8420)
