The Adapter Plate AP187 from Coronado is designed to mount a SolarMax 90 filter to an Astro-Physics 92 mm Stowaway telescope.
SolarMax filters are not stand-alone devices; they must be used in conjunction with a secondary interference/blocking filter. The SolarMax 90 filter can be purchased in a kit that includes the correct blocking filter for your telescope's focal length.
Accepts SolarMax 90 filter
Fits Astro-Physics 92 mm Stowaway Telescope
A blocking filter must be used with all SolarMax solar filters