(This is the suggested replacement for 2940-223 and 2960-223)
These 22x30mm rectangular No.1_ Corning® cover glasses are made from borosilicate glass and are 0.16 to 0.19mm thick.
CorningÍs special, optically clear, water-white, borosilicate cover glass is resistant to surface attach or weathering and will remain clear for extended periods of time. Packed one ounce per pack and 10 packs per case.
The thickness of No. 1 1/2 rectangles is 0.16 mm to 0.19 mm.