TPO #80A Medium Blue Filter & Case - 2" | OPT Telescopes
0.965 Inch Telescope Eyepiece Color Filter For Moon Lunar Planet Nebula # 80a - Decorative Telescopes - AliExpress
Lumicon Blue #80A 1.25" Color Conversion Filter LF1070 B&H Photo
Amazon.com : Astromania 1.25" Multiple 5-Position Filter Wheel for Telescope - with 1.25-Inch Four Color Filters(#15 Deep Yellow, 25 Red, 58A Green and # 80A Medium Blue) : Electronics
20180628 Jupiter with blue filter - YouTube
Agena 2" Color / Planetary Filter - #80A Medium Blue
Lumicon Blue #80A 1.25" Color Conversion Filter LF1070 B&H Photo
Telescope Accessory Kit #80a Blue #25 Red Crystalview Moon 1.25" Color/planetary Filter 2x Barlow Lens Omni 6mm 15mm Eyepiece - Telescope - AliExpress
Amazon.com : Explore Scientific Filter 1.25 Inch No. 80A for Telescopes Blue : Electronics
Amazon.com : ICE 2" Jupiter 80A Blue Filter for Telescope : Electronics
Amazon.com : Alstar 2" Color/Planetary Filter for Telescope - #80A Blue : Electronics
Lumicon 1.25 Inch #80A Blue Color Filter - Camera Concepts & Telescope Solutions