- Please fix the quantity error in (MQC102) Quartz Capillary Tubes (Round), O.D.: 1.25mm, I.D.: 0.75mm, Length: 25mm, (MQF049) Calcium Fluoride (CaF2) Windows, Round, Size: φ40mm, Thick: 2mm, 130-9000nm, (MQC155) Quartz Capillary Tubes (Round), O.D.: 1.7mm, I.D.: 0.7mm, Length: 50mm, (MQC131) Quartz Capillary Tubes (Round), O.D.: 1.45mm, I.D.: 1.1mm, Length: 50mm, (MQC379) Quartz Capillary Tubes (Square), Outer Dim.: 1x1mm, Inner Dim.: 0.2×0.2mm, Length: 50mm products