Click to expand Tap to zoom EM-Tec 20nm silicon nitride membrane, 0.25x 0.25mm window, 100µm frame SKU AU-23-102025-10 Original price $543.16 - Original price $543.16 Original price $543.16 $543.16 - $543.16 Current price $543.16 | / Choose a variant 10 - $543.16 Units per package: 10 10 Quantity Add to cart