Comparison : Item # 74201-000, To Be Specified (3-144.00")" Rigid Waveguide WR284 (R32) Straight Section
Item # 74201-706, 6" Rigid Waveguide WR284 (R32) Straight Section
Item # 74201-712, 12" Rigid Waveguide WR284 (R32) Straight Section
Item # 74201-718, 18" Rigid Waveguide WR284 (R32) Straight Section
Item # 74201-724, 24" Rigid Waveguide WR284 (R32) Straight Section