Durst enlarger red safety filter

Suitable for Durst Enlargers that allow the safety filter to be mounted directly to the lens stage without a mounting post. These include the M670 / M 370 BW / B35 / C35 / C65. Used for black & white printing to allow the image from the negative to be composed and focussed on the baseboard with printing paper in place. XC 04105 2 is embossed on the black plastic. 65mm from centre of filter to centre of mounting hole. Total length 100mm and 55mm diameter.