Comparison : Item # 65846-000, WR284 (R32) Waveguide Monitor Coupler
Item # 65846-701, WR284 (R32) Waveguide Monitor Coupler
Item # 67367-000, WR284 (R32) Waveguide Dual Directional Coupler
Item # 67367-701, WR284 (R32) Waveguide Dual Directional Coupler
Item # 67569-000, WR340 (R26) Waveguide Monitor Coupler