Comparison : Item # JR150-4, Saddle Type 1/2 to 6" Pipe Clamp
Item # JR150-8, Ring Type 1" Pipe Clamp
Item # JR150-10, Ring Type 1 1/4" Pipe Clamp
Item # JR150-12, Ring Type 1 1/2" Pipe Clamp
Item # JR150-16, Ring Type 2" Pipe Clamp