![Schmidt Nib Unit - FH452 - 8.5mm](http://www.schmidtpenparts.com/cdn/shop/products/FH452-Gold_{width}x.jpg?v=1558441488)
Schmidt Nib Unit - FH452 - 8.5mm
The FH452 nib unit system works reliably in all situations, even up to an altitude of 11,000 meters which exerts a 750 bar pressure. It comes with an altitude fixation ring and a cap seal.
The FH452 nib unit system works reliably in all situations, even up to an altitude of 11,000 meters which exerts a 750 bar pressure. It comes with an altitude fixation ring and a cap seal.