Fittings Couplers

What is the difference between a Copper Pipe bushing and a Copper Pipe Coupler?

I am talking about unthreaded fittings.

a copper pipe bushing is used to join two pieces of pipe that are different diameter's such as 3/4 and 1/2 pipe,normaly one uses the outside of the bushing to go inside the female end of a fitting and the insid of the bushing is drilled to accept the pipe itself.
A coupler,or coupling is used in much the same way except it can be used to join 2 pieces of pipe of the same diamater or different diamaters and the pipe ends fit inside the coupling.

Check out these Fittings Couplers-related listings and save big bucks!

NASCAR  AEROQUIP AN-16 Hose Coupler/Fitting - IMCA /NASCAR/SCCA/NHRA -#50312(B4)
NASCAR AEROQUIP AN-16 Hose Coupler/Fitting - IMCA /NASCAR/SCCA/NHRA -#50312(B4)
US $17.19
Fitting, Coupler, Straight, Female -3 AN Female -3 AN
Fitting, Coupler, Straight, Female -3 AN Female -3 AN
US $7.95
10 AN 90 Degree Female Coupler Adapter Fitting
10 AN 90 Degree Female Coupler Adapter Fitting
US $18.26
PPD-924104-1 Male -4 AN To -4 AN Female 45 Degree Swivel Coupler Union Fitting
PPD-924104-1 Male -4 AN To -4 AN Female 45 Degree Swivel Coupler Union Fitting
US $11.69
PPD-924104-2 Male -4 AN To -4 AN Female 45 Degree Swivel Coupler Union Fitting
PPD-924104-2 Male -4 AN To -4 AN Female 45 Degree Swivel Coupler Union Fitting
US $11.69
PPD-921103-1 Male -3 AN To -3 AN Female 90 Degree Swivel Coupler Union Fitting
PPD-921103-1 Male -3 AN To -3 AN Female 90 Degree Swivel Coupler Union Fitting
US $11.51
AN FITTINGS -8 FEMALE AN FITTING UNION COUPLER
AN FITTINGS -8 FEMALE AN FITTING UNION COUPLER
US $11.79
#4 AN Male 90 Degree Swivel Run Coupler Fitting -4AN
#4 AN Male 90 Degree Swivel Run Coupler Fitting -4AN
US $11.18
#3 AN Male 90 Degree Swivel Run Coupler Fitting -3AN
#3 AN Male 90 Degree Swivel Run Coupler Fitting -3AN
US $11.18
#6 AN Tee Female Swivel Run Coupler Fitting -6AN
#6 AN Tee Female Swivel Run Coupler Fitting -6AN
US $14.21
1/2
1/2" NPT Male Union Coupler Fitting Adapter
US $4.98
#8 AN Male 90 Degree Swivel Run Coupler Fitting -8AN
#8 AN Male 90 Degree Swivel Run Coupler Fitting -8AN
US $18.18
#10 AN Tee Female Swivel Run Coupler Fitting -10AN
#10 AN Tee Female Swivel Run Coupler Fitting -10AN
US $28.01
1/4
1/4" NPT Female Pipe Coupler Fitting Adapter
US $2.98
#3 AN Tee Female Swivel Run Coupler Fitting -3AN
#3 AN Tee Female Swivel Run Coupler Fitting -3AN
US $13.21
#10 AN Male 90 Degree Swivel Run Coupler Fitting -10AN
#10 AN Male 90 Degree Swivel Run Coupler Fitting -10AN
US $24.18
3/4
3/4" NPT Female Pipe Coupler Fitting Adapter
US $11.98
#12 AN Female to Male Tee Coupler Fitting -12AN
#12 AN Female to Male Tee Coupler Fitting -12AN
US $29.21
1
1" NPT Female Pipe Coupler Fitting Adapter
US $12.98
1/8
1/8" NPT Female Pipe Coupler Fitting Adapter
US $2.98
1
1" NPT Male Union Coupler Fitting Adapter
US $7.98
#10 AN Female to Male Tee Coupler Fitting -10AN
#10 AN Female to Male Tee Coupler Fitting -10AN
US $27.21
#12 AN Tee Female Swivel Run Coupler Fitting -12AN
#12 AN Tee Female Swivel Run Coupler Fitting -12AN
US $29.21
1/2
1/2" NPT Female Pipe Coupler Fitting Adapter
US $7.98
1/8
1/8" NPT Male Union Coupler Fitting Adapter
US $2.98
1/4
1/4" NPT Male Union Coupler Fitting Adapter
US $2.98
#8 AN Female to Male Tee Coupler Fitting -8AN
#8 AN Female to Male Tee Coupler Fitting -8AN
US $22.21
#8 AN Tee Female Swivel Run Coupler Fitting -8AN
#8 AN Tee Female Swivel Run Coupler Fitting -8AN
US $22.21
#6 AN Female to Male Tee Coupler Fitting -6AN
#6 AN Female to Male Tee Coupler Fitting -6AN
US $14.21
3/4
3/4" NPT Male Union Coupler Fitting Adapter
US $6.98
#12 AN Male 90 Degree Swivel Run Coupler Fitting -12AN
#12 AN Male 90 Degree Swivel Run Coupler Fitting -12AN
US $30.18
#4 AN Female to Male Tee Coupler Fitting -4AN
#4 AN Female to Male Tee Coupler Fitting -4AN
US $13.21
#6 AN Male 90 Degree Swivel Run Coupler Fitting -6AN
#6 AN Male 90 Degree Swivel Run Coupler Fitting -6AN
US $13.18
3/8
3/8" NPT Female Pipe Coupler Fitting Adapter
US $4.98
#4 AN Tee Female Swivel Run Coupler Fitting -4AN
#4 AN Tee Female Swivel Run Coupler Fitting -4AN
US $13.21
PPD-921110-1 -10 AN Male To -10 AN Female 90 Degree Swivel Coupler Fitting Blue
PPD-921110-1 -10 AN Male To -10 AN Female 90 Degree Swivel Coupler Fitting Blue
US $19.79
PPD-921110-2 -10 AN Male To -10 AN Female 90 Degree Swivel Coupler Fitting Black
PPD-921110-2 -10 AN Male To -10 AN Female 90 Degree Swivel Coupler Fitting Black
US $19.79
PPD-921108-2 -8 AN Male To -8 AN Female 90 Degree Swivel Coupler Fitting Black
PPD-921108-2 -8 AN Male To -8 AN Female 90 Degree Swivel Coupler Fitting Black
US $17.99
PPD-921112-2 -12 AN Male To -12 AN Female 90 Degree Swivel Coupler Fitting Black
PPD-921112-2 -12 AN Male To -12 AN Female 90 Degree Swivel Coupler Fitting Black
US $22.49
PPD-921112-1 -12 AN Male To -12 AN Female 90 Degree Swivel Coupler Fitting Blue
PPD-921112-1 -12 AN Male To -12 AN Female 90 Degree Swivel Coupler Fitting Blue
US $22.49
PPD-921103-2 -3 AN Male To -3 AN Female 90 Degree Swivel Coupler Union Fitting
PPD-921103-2 -3 AN Male To -3 AN Female 90 Degree Swivel Coupler Union Fitting
US $11.51
PPD-921104-1   -4 AN Male To -4 AN Female 90 Degree Swivel Coupler Union Fitting
PPD-921104-1 -4 AN Male To -4 AN Female 90 Degree Swivel Coupler Union Fitting
US $11.69
PPD-921104-2   -4 AN Male To -4 AN Female 90 Degree Swivel Coupler Union Fitting
PPD-921104-2 -4 AN Male To -4 AN Female 90 Degree Swivel Coupler Union Fitting
US $11.69
PPD-921108-1  -8 AN Male To -8 AN Female 90 Degree Swivel Coupler Fitting Blue
PPD-921108-1 -8 AN Male To -8 AN Female 90 Degree Swivel Coupler Fitting Blue
US $17.99
PPD-921106-1    -6 AN Male To 6 AN Female 90 Degree Coupler Union Fitting Blue
PPD-921106-1 -6 AN Male To 6 AN Female 90 Degree Coupler Union Fitting Blue
US $13.49
#3 AN Female to Male Tee Coupler Fitting -3AN
#3 AN Female to Male Tee Coupler Fitting -3AN
US $11.92
1/2
1/2" NPT BLACK Female Pipe Thread Coupler Fitting Adapter
US $6.98
3/8
3/8" NPT Female Pipe Thread Coupler Fitting Adapter
US $4.73
Swivel Coupler # 6 AN to 6AN Female Straight Fitting
Swivel Coupler # 6 AN to 6AN Female Straight Fitting
US $10.98
Swivel Coupler # 8AN to 8 AN Female Straight Fitting
Swivel Coupler # 8AN to 8 AN Female Straight Fitting
US $10.98
Swivel Coupler # 10 AN to 10 AN Female Straight Fitting
Swivel Coupler # 10 AN to 10 AN Female Straight Fitting
US $12.98
Swivel Coupler # 12 AN to 12 AN Female Straight Fitting
Swivel Coupler # 12 AN to 12 AN Female Straight Fitting
US $15.98
PRE-61000E -10 AN Female To -10 AN Female Straight Swivel Coupler Fitting Nickel
PRE-61000E -10 AN Female To -10 AN Female Straight Swivel Coupler Fitting Nickel
US $9.44
Fitting, Coupler, Straight, Male -3 AN to Male -3 AN
Fitting, Coupler, Straight, Male -3 AN to Male -3 AN
US $3.95
MR GASKET SHADOW SERIES AN FITTING A6  -6 COUPLER
MR GASKET SHADOW SERIES AN FITTING A6 -6 COUPLER
US $3.09
MR GASKET SHADOW SERIES AN FITTING A8  -8 COUPLER
MR GASKET SHADOW SERIES AN FITTING A8 -8 COUPLER
US $3.19
10 Pack -4 to -4 AN Red Blue Anodized Straight Swivel Coupler Adapter Fitting
10 Pack -4 to -4 AN Red Blue Anodized Straight Swivel Coupler Adapter Fitting
US $30.50
10 Pack -6 to -6 AN Red Blue Anodized Straight Swivel Coupler Adapter Fitting
10 Pack -6 to -6 AN Red Blue Anodized Straight Swivel Coupler Adapter Fitting
US $33.00
5 Pack -8 to -8 AN Red Blue Anodized Straight Swivel Coupler Adapter Fitting
5 Pack -8 to -8 AN Red Blue Anodized Straight Swivel Coupler Adapter Fitting
US $24.00
5 Pack -10 to -10 AN Red Blue Anodized Straight Swivel Coupler Adapter Fitting
5 Pack -10 to -10 AN Red Blue Anodized Straight Swivel Coupler Adapter Fitting
US $31.00
5 Pack -12 to -12 AN Red Blue Anodized Straight Swivel Coupler Adapter Fitting
5 Pack -12 to -12 AN Red Blue Anodized Straight Swivel Coupler Adapter Fitting
US $34.00
PRE-61200E -12 AN Female To -12 AN Female Straight Coupler Fitting Nickel Plated
PRE-61200E -12 AN Female To -12 AN Female Straight Coupler Fitting Nickel Plated
US $11.69
MP-3030 Magnafuel 3/8
MP-3030 Magnafuel 3/8" NPT Pipe Thread To -10 AN Straight Cut Coupler Fitting
US $27.99
1/4
1/4" NPT Pipe Thread Coupler, Anodized AN Fitting
US $4.83
3/8
3/8" NPT Pipe Thread Coupler, Anodized AN Fitting
US $6.46
1/2
1/2" NPT Pipe Thread Coupler, Anodized AN Fitting
US $8.70
6 AN 90 Degree Female Coupler Adapter Fitting
6 AN 90 Degree Female Coupler Adapter Fitting
US $11.83
MR GASKET SHADOW SERIES AN FITTING SC8B 90 DEGREE COUPLER FOR -8 BRAIDED HOSE
MR GASKET SHADOW SERIES AN FITTING SC8B 90 DEGREE COUPLER FOR -8 BRAIDED HOSE
US $13.29
MR GASKET SHADOW SERIES AN FITTING SC8A 45 DEGREE COUPLER FOR -8 BRAIDED HOSE
MR GASKET SHADOW SERIES AN FITTING SC8A 45 DEGREE COUPLER FOR -8 BRAIDED HOSE
US $13.29
MR GASKET SHADOW SERIES AN FITTING SC6A 45 DEGREE COUPLER FOR -6 BRAIDED HOSE
MR GASKET SHADOW SERIES AN FITTING SC6A 45 DEGREE COUPLER FOR -6 BRAIDED HOSE
US $13.29
MR GASKET SHADOW SERIES AN FITTING SC4 COUPLER FOR -4 BRAIDED HOSE
MR GASKET SHADOW SERIES AN FITTING SC4 COUPLER FOR -4 BRAIDED HOSE
US $6.29
MR GASKET SHADOW SERIES AN FITTING SC6 COUPLER FOR -6 BRAIDED HOSE
MR GASKET SHADOW SERIES AN FITTING SC6 COUPLER FOR -6 BRAIDED HOSE
US $6.29
MR GASKET SHADOW SERIES AN FITTING SC8 COUPLER FOR -8 BRAIDED HOSE
MR GASKET SHADOW SERIES AN FITTING SC8 COUPLER FOR -8 BRAIDED HOSE
US $6.29
8 AN 90 Degree Female Coupler Adapter Fitting
8 AN 90 Degree Female Coupler Adapter Fitting
US $14.75



Threaded Couplings and Short Threaded Couplings



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MR GASKET SHADOW SERIES AN FITTING SC8 COUPLER FOR -8 BRAIDED HOSE, MR GASKET SHADOW SERIES AN FITTING SC6 COUPLER FOR -6 BRAIDED HOSE, MR GASKET SHADOW SERIES AN FITTING SC4 COUPLER FOR -4 BRAIDED HOSE, MR GASKET SHADOW SERIES AN FITTING SC6A 45 DEGREE COUPLER FOR -6 BRAIDED HOSE, MR GASKET SHADOW SERIES AN FITTING SC8A 45 DEGREE COUPLER FOR -8 BRAIDED HOSE, MR GASKET SHADOW SERIES AN FITTING SC8B 90 DEGREE COUPLER FOR -8 BRAIDED HOSE, 5 Pack -12 to -12 AN Red Blue Anodized Straight Swivel Coupler Adapter Fitting, 5 Pack -10 to -10 AN Red Blue Anodized Straight Swivel Coupler Adapter Fitting, 5 Pack -8 to -8 AN Red Blue Anodized Straight Swivel Coupler Adapter Fitting, 10 Pack -6 to -6 AN Red Blue Anodized Straight Swivel Coupler Adapter Fitting, 10 Pack -4 to -4 AN Red Blue Anodized Straight Swivel Coupler Adapter Fitting, MR GASKET SHADOW SERIES AN FITTING A6 -6 COUPLER, MR GASKET SHADOW SERIES AN FITTING A8 -8 COUPLER, PPD-921106-1 -6 AN Male To 6 AN Female 90 Degree Coupler Union Fitting Blue, PPD-921108-1 -8 AN Male To -8 AN Female 90 Degree Swivel Coupler Fitting Blue , PPD-921104-2 -4 AN Male To -4 AN Female 90 Degree Swivel Coupler Union Fitting, PPD-921104-1 -4 AN Male To -4 AN Female 90 Degree Swivel Coupler Union Fitting, PPD-921103-2 -3 AN Male To -3 AN Female 90 Degree Swivel Coupler Union Fitting, PPD-921112-1 -12 AN Male To -12 AN Female 90 Degree Swivel Coupler Fitting Blue, PPD-921112-2 -12 AN Male To -12 AN Female 90 Degree Swivel Coupler Fitting Black, PPD-921108-2 -8 AN Male To -8 AN Female 90 Degree Swivel Coupler Fitting Black, PPD-921110-2 -10 AN Male To -10 AN Female 90 Degree Swivel Coupler Fitting Black, PPD-921110-1 -10 AN Male To -10 AN Female 90 Degree Swivel Coupler Fitting Blue, NASCAR AEROQUIP AN-16 Hose Coupler/Fitting - IMCA /NASCAR/SCCA/NHRA -#50312(B4), PPD-921103-1 Male -3 AN To -3 AN Female 90 Degree Swivel Coupler Union Fitting,



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