... These are the metal strips secured to the bottom plate of LPL negative carriers that keep the carrier centered in the opening in the negative stage plate and allow you to rotate the carrier...These plates are fitted to all glassless and 35mm glass LPL negative carriers supplied for LPL, Saunders/LPL, Jobo/LPL, and Omega/LPL 4x5 enlargers...

... This is the heat absorbing glass specifically sized for Beseler 23C condenser enlargers...The glass fits all versions of the 23C condenser enlarger with filter drawer...

... This is the correct 6 x 6 heat absorbing glass for the Omega DV variable condenser lamphouse as fitted to the D-2, D-3 and D-5 enlargers...Heat absorbing glass eliminates much of the infrared radiation from the light produced by the enlarging lamp, thus helping to protect negatives and filters from heat damage and minimizing negativ...

...Replacement clear top glass for the Beseler #8076 6x6 glass roll film negative carrier for 23C enlargers, and the #8346 6x6 glass roll film negative carrier for Beseler 4x5 enlargers...