wanted astronomik narrowband filters halpha, OIII and SII

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Hi I am looking for Astronomik Photographic Narrowband-Emissionline Filters with  6nm FWHM and MFR Coatings. I need h-alpha, SII, and OIII. 1 1/4 inch/ Glass, coating and threads must be in pefect shape. Please let me know what you have.
dj