The FWH1 is a unique eight-position, clear-edge filter wheel. The new clip-in filter mounting design makes it stand out from other filter wheels. While typical filter wheels employ cumbersome retaining rings to hold the filters, the FWH1’s clip mounting design allows fast, tool-free installation and removal. Additionally, it can hold up to eight filters, instead of just six, and has an option for holding 2-in. square filters.