ZWO Filter Masks

The included M2 screws threaded cleanly into the wheel without any wobble, and the mask fit snugly over the filter. I’ve already installed three filters with zero light leaks, and the whole process took under ten minutes.

Adhered the M2 screws perfectly and the filter wheel back cover snapped right back on after I placed the masks—no wobble at all. A neat little kit that saved me from having to guess at alignment.

Finally got my filters properly seated in the wheel after using these masks and the included M2 screws. The back cover removal was straightforward with the provided instructions, and now everything locks in tight with no wobble.