These 1.5 inch series Oriel^® flanged filter wheels are simple and inexpensive alternatives to motorized filter wheels, when filter interchange is infrequent. They hold five or eight 1 or 2 inch (25.4 or 50.8 mm) diameter filters or apertures. A knurled knob at the top of the device rotates the wheel and indicates the filter in position. Each filter is positioned in the housing by a spring-loaded detent.

These 1.5 inch series Oriel^® flanged filter wheels are simple and inexpensive alternatives to motorized filter wheels, when filter interchange is infrequent. They hold five or eight 1 or 2 inch (25.4 or 50.8 mm) diameter filters or apertures. A knurled knob at the top of the device rotates the wheel and indicates the filter in position. Each filter is positioned in the housing by a spring-loaded detent.