![Pyrex Lens, 3](http://stilldragon.com.au/cdn/shop/products/lens1__37540_{width}x.jpg?v=1621395911)
Pyrex lens to suit 3" ferrule. Use with 3" Slicone O-Ring and 3" triclmap to make a viewport. Caution, clamp needs only a tiny amount of finger tension
Pyrex lens to suit 3" ferrule. Use with 3" Slicone O-Ring and 3" triclmap to make a viewport. Caution, clamp needs only a tiny amount of finger tension