A Lithium Blanket Module (LBM) representative of a fusion reactor blanket module has been designed and will be tested using the toroidal neutron source of the Tokamak Fusion Test Reactor (TFTR) beginning in 1985. A rugged design consisting of 921 2.54 em diameter breeder rods in an 80 em cubic box has been developed, and the techniques and equipment necessary for mass production of the Li20 breeder pellets have been demonstrated. Analysis using a coupled Monte Carlo neutronics model has shown that tritium production is uniform across the module to within 8 em of the edge, and that the front face fusion fluence and central region tritium production can be calculated to acceptable accuracies for eventual comparison with measurements on the LBM installed on the TFTR.