Spectrum Telescope Film Solar Filter ST450BP1

Your O.D. Measurement:  4 1/8” (105mm) to 4 3/8” (111mm)

Telescopes that fit this Filter size:  AstroPhysics 90mm; Meade DS-90; Tele Vue-85; GP-102; Orion ShortTube 90, GoScope 350; Transporter 70 EQ; Takahashi:  FS-78, FCL-90 (Sky 90); Vixen 4;