Premium U-V transmitting visible absorbing filter made from ZWB1 material for optimal performance. Precision-engineered with a thickness tolerance of ±0.05mm, ensuring reliable and consistent results in laboratory applications. Features a diameter of 40mm and a thickness of 2mm, making it ideal for various optical experiments and setups. Manufactured using advanced cold working processes for superior surface accuracy of /4@632.8nm, enhancing optical clarity. Compatible with a wide range of test tubes and laboratory equipment, providing versatility for researchers and scientists.