Precision-made platinum final apertures for Topcon/ISI® scopes are available in the three most popular sizes. The ETEC® apertures have been designed especially for the needs of ETEC® scopes. The 200 micron aperture is counterbored, making it useful as either a spray or final aperture. The 150 micron size is for use only as a final aperture. Platinum apertures may be flame cleaned. Sold in packs of 5.
This item may be out of stock! Please call (301) 975-9798 prior to ordering.