Comparison : Item # 0174M (1/2") STL WHL NP, 1/2 (in) Sheave Height (A) Rigid Round Eye Single Wheel Pulley
Item # 0174M (3/4") STL WHL BP, 3/4 (in) Sheave Height (A) Rigid Round Eye Single Wheel Pulley
Item # 0174M (1") STL WHL BP, 1 (in) Sheave Height (A) Rigid Round Eye Single Wheel Pulley
Item # 0174M (1-1/4") STL WHL BP, 1-1/4 (in) Sheave Height (A) Rigid Round Eye Single Wheel Pulley
Item # 0174M (1-1/2") STL WHL BP, 1-1/2 (in) Sheave Height (A) Rigid Round Eye Single Wheel Pulley