Stainless Steel Filter units
Lot of five
Each is 25.98mm
Four have a woven pair of screens, a knurled thumb screw and nut
Three of these are matchers with 6 holes.
One has the same general design with 12 holes.
The last one has four corner posts and an alignment pin. The screens are punched or cut of thin plate.
Possibly for electron microscope or ion chamber
Listed with ExportYourStore.com
Lot of five
Each is 25.98mm
Four have a woven pair of screens, a knurled thumb screw and nut
Three of these are matchers with 6 holes.
One has the same general design with 12 holes.
The last one has four corner posts and an alignment pin. The screens are punched or cut of thin plate.
Possibly for electron microscope or ion chamber
Listed with ExportYourStore.com