Click to expand Tap to zoom EM-Tec 30nm silicon nitride membrane, 0.25 x 0.25mm window, 200µm frame SKU AU-23-203025-10 Original price $362.10 - Original price $362.10 Original price $362.10 $362.10 - $362.10 Current price $362.10 | / Choose a variant 10 - $362.10 Units per package: 10 10 Quantity Add to cart