![]() 25mm Ultraviolet Bandpass Filters Representative Spectral Transmission Curve CLICK HERE Wavelength specific transmission curves available upon request. 25mm Diameter. Select Center Wavelength and 10nm or 20nm Bandwidth $549.00 | ![]() 50mm Ultraviolet Bandpass Filters Representative Spectral Transmission Curve CLICK HERE Wavelength specific transmission curves available upon request. 50mm Diameter. Select Center Wavelength and 10nm or 20nm Bandwidth $899.00 |