it´s right what Britta said.
The part number 1543-195L doesn´t exist, because the L-Versions have no longitudinal holes. The L Version of this element is 1543-190L / (1543-191L with FKM seals) .
The models according to the part number of your homepage are also wrong.
I attached you the catalog page with the different versions.
If you have more questions please ask.