https://shop.amstechnologies.com/Multimode-Mandrel-Wrap-Filter-Set-TIA-50-62.5-mm-OPT701/C007142-6
Multimode Mandrel Wrap Filter Set, TIA, 50 & 62.5 μm OPT701
The Kingfisher International OPT701 mandrel wrap mode filters are used to improve loss testing accuracy on multimode optical fiber.
mandrel wrapmultimodefiltersettia