MITEK JACKPOST 3.5" X 5.25" PLATE KIT A PKA

Each plate kit (PK) comes with one PL plate and one A or B or C or D plate.
Interchangeable with PL (4.5 x 6) plate and can be used as bottom plate only on RJ25 columns, 2-PLY SCL, 3-PLY SCL,2 PLY 2X, 3 PLY 2X