Table 1. C-2040 Averaging Cumulator Code Number Description C-2040-1 Averaging Cumulator Table 2. Accessories for C-2040 Code Number Description R-3710 Series .007 in. Restrictor F-300-30 1/4 x 5/32 in. Coupler (100 pk) F-300-34 1/4 x 5/32 in. Coupler (10 pk)