Filter Centering Masks

These Filter Centering Masks will make it easy to center your filters in a filter wheel, and will block any potential light leak due to the filters being off-center in the filter disk seat.   Simply place your filter in the filter wheel disk, place the Filter Centering Mask over the filter and fasten with screws.   Sold in sets of 7, 8, 9 or 10 depending on the filter mask size. 

Available for ZWO, QHY, Atik, QSI, Moravian (GXCCD), Player One, Pegasus Indigo, ToupTek/OGMA and SBIG filter wheels.

Printed in durable, temperature tolerant PETG filament.

How to determine which filter masks are needed:
1.  The first part of the product name is the brand (ex. ZWO)
2.  The second part of the product name is the diameter of the filters (ex. 36mm), and for some brands the specific filter wheel (ex. EFW2)
3.  For some brands, different masks are needed for 2mm or 3mm thick filters.  The last part of the product name is the thickness of the filters (if applicable).