Seymour Solar 3.5" (90mm) Helios Solar Glass Filter. Fits Optical Tube Diameter 3 1/8" (80mm) to 3 3/8" (86mm)

• All Seymour Solar products meet the ISO 12312-2 requirements. Our Helios Solar Glass and Helios Film block out 99.999% of all light, including harmful IR & UV rays.
• Packaged in a foam lined storage box along with instructions for use and care.
• Sturdy aluminum cell with Helios Solar Glass.
• Secured with a nylon thumb screw and felt is also provided.
• We have experience in manufacturing safe solar filters for over a decade.

• Item Reference: B06X3QC2P8 0642645705065 642645705065