LTA3X2Z: Tightfill brass adaptor. 3" connection to 2" BSP threaded.
LTA3X3: Tightfill brass adaptor. 3" connection to 3" BSP threaded.
LTA3X4:Tightfill brass adaptor. 3" connection to 4" BSP threaded.
LTA4X2 :Tightfill brass adaptor. 4" connection to 2" BSP threaded.
LTA4X3: Tightfill brass adaptor. 4" connection to 3" BSP threaded.
LTA4X4: Tightfill brass adaptor. 4" connection to 4" BSP threaded.