3 8 Coupling(89)
Uses item details. Price when purchased online
(1) EZ-Fluid 3/8" Comp. x 3/8" MIP Male Adapter Reducing Union Coupling Fittings Connector,Compression x NPT,LF Brass Compression Tube Fitting Safe for Drinking water Plumbing $7.51

Sponsored
$751
current price $7.51(1) EZ-Fluid 3/8" Comp. x 3/8" MIP Male Adapter Reducing Union Coupling Fittings Connector,Compression x NPT,LF Brass Compression Tube Fitting Safe for Drinking water Plumbing
Best seller Hyper Tough 4-Piece 3/8-In Quick Coupler & Plug Set, Automotive Type, 3/8 Inch NPT Male & Female Threads Size, Brass & Steel material, $13.97 0.5 ¢/ea

$1397
current price $13.970.5 ¢/ea
Hyper Tough 4-Piece 3/8-In Quick Coupler & Plug Set, Automotive Type, 3/8 Inch NPT Male & Female Threads Size, Brass & Steel material,
344.6 out of 5 Stars. 34 reviews
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Coupling Coupling, 3/8" Pipe, FNPT, Malleable Iron, Class 300 $10.04 Was $12.99

Now$1004
current price Now $10.04, Was $12.99$12.99
Coupling Coupling, 3/8" Pipe, FNPT, Malleable Iron, Class 300
Coupling Coupling, 3/8" Pipe, FNPT, Black Forged Steel, Class 3000 $9.65

$965
current price $9.65Coupling Coupling, 3/8" Pipe, FNPT, Black Forged Steel, Class 3000
Stainless Steel 304 Cast Pipe Fittings Coupling Fitting 3/8 x 3/8 G Female 3 pcs $9.99

$999
current price $9.99Stainless Steel 304 Cast Pipe Fittings Coupling Fitting 3/8 x 3/8 G Female 3 pcs
Watts P-400 Quick-Connect Coupling, 3/8", Copper Tube Size, Each $9.21

$921
current price $9.21Watts P-400 Quick-Connect Coupling, 3/8", Copper Tube Size, Each
Watts PL-3020 Push Coupling, 3/8-Inch OD by Watts $8.91

$891
current price $8.91Watts PL-3020 Push Coupling, 3/8-Inch OD by Watts
Uxcell 3/8 Inch ID Copper Coupling Fittings, 12 Pcs Rolled Tube Stop Straight Pipe Fitting Welding Joint for HVAC $13.04

$1304
current price $13.04Uxcell 3/8 Inch ID Copper Coupling Fittings, 12 Pcs Rolled Tube Stop Straight Pipe Fitting Welding Joint for HVAC
Coupling Easy Alignment Coupling, 3/8" Pipe, FNPT, Steel, Class 150 $17.88 $17.88/1

$1788
current price $17.88$17.88/1
Coupling Easy Alignment Coupling, 3/8" Pipe, FNPT, Steel, Class 150
Coupling Coupling, 3/8" Pipe, FNPT, Black Forged Steel, Class 3000 $10.55

$1055
current price $10.55Coupling Coupling, 3/8" Pipe, FNPT, Black Forged Steel, Class 3000
Supply Giant BRCP0038-NL 3/8" Brass Coupling, Lead free $4.84

$484
current price $4.84Supply Giant BRCP0038-NL 3/8" Brass Coupling, Lead free
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Manufacturer Varies Quick Coupling,3/8 (F) x 22mm 1MDL4 $18.65 Was $21.99

Now$1865
current price Now $18.65, Was $21.99$21.99
Manufacturer Varies Quick Coupling,3/8 (F) x 22mm 1MDL4
Half Coupling Half Coupling, 3/8" Pipe, FNPT, Black Forged Steel, Class 3000 $9.10

$910
current price $9.10Half Coupling Half Coupling, 3/8" Pipe, FNPT, Black Forged Steel, Class 3000
Half Coupling Half Coupling, 3/8" Pipe, FNPT, Black Forged Steel, Class 3000 $8.95 Was $11.99

Now$895
current price Now $8.95, Was $11.99$11.99
Half Coupling Half Coupling, 3/8" Pipe, FNPT, Black Forged Steel, Class 3000
Brass Coupling , 3/8" x 3/8" - Esco 41131 $5.00

$500
current price $5.00Brass Coupling , 3/8" x 3/8" - Esco 41131
Anvil Coupling Coupling, 3/8" Pipe, FNPT, Malleable Iron, Class 300 0310538202 $24.58 $24.58/1

$2458
current price $24.58$24.58/1
Anvil Coupling Coupling, 3/8" Pipe, FNPT, Malleable Iron, Class 300 0310538202
COUPLING, 3/8 MERCH FULL 1828100000 - Genuine OEM Replacement Part $15.07

$1507
current price $15.07COUPLING, 3/8 MERCH FULL 1828100000 - Genuine OEM Replacement Part
LTWFITTING Brass Pipe Fitting Coupling Coupler 3/8 x 3/8 Inch Female NPT FNPT FPT Pipe Water Boat(Pack of 25) $50.99

$5099
current price $50.99LTWFITTING Brass Pipe Fitting Coupling Coupler 3/8 x 3/8 Inch Female NPT FNPT FPT Pipe Water Boat(Pack of 25)
Amc 750068-0606 3/8" X 3/8" Compression Coupling $35.31

$3531
current price $35.31Amc 750068-0606 3/8" X 3/8" Compression Coupling
Galvanized 3/8-in Straight Coupling fits Pipe O.D. 0.675-in $6.97 Was $11.45

Now$697
current price Now $6.97, Was $11.45$11.45
Galvanized 3/8-in Straight Coupling fits Pipe O.D. 0.675-in
SharkBite Reducing Coupling, 3/8 Inch by 1/2 Inch, Push-to-Connect, PEX, Copper, CPVC, PE-RT, HDPE From $13.91

3 options
Available in additional 3 optionsFrom$1391
SharkBite Reducing Coupling, 3/8 Inch by 1/2 Inch, Push-to-Connect, PEX, Copper, CPVC, PE-RT, HDPE
Manufacturer Varies Pipe Coupling,Aluminum,3/8 (F)NPT 30E650 $17.59

$1759
current price $17.59Manufacturer Varies Pipe Coupling,Aluminum,3/8 (F)NPT 30E650
Manufacturer Varies PVC Coupling, Socket x Socket, 3/8 in Pipe Size 429003 $8.75 Was $10.99

Now$875
current price Now $8.75, Was $10.99$10.99
Manufacturer Varies PVC Coupling, Socket x Socket, 3/8 in Pipe Size 429003
LASCO 17-7531 3/8-Inch Hose Barb by 3/8-Inch Hose Barb Brass Coupling $8.96

$896
current price $8.96LASCO 17-7531 3/8-Inch Hose Barb by 3/8-Inch Hose Barb Brass Coupling
Southland 3/8 In. x 1/8 In. Malleable Black Iron Reducing Coupling 521-320HC $16.61

$1661
current price $16.61Southland 3/8 In. x 1/8 In. Malleable Black Iron Reducing Coupling 521-320HC
WRITWAA 6Pcs Brass Plumbing Fittings 3 8 Inch Pex Hose Connector with Excellent Heat Resistance $13.18

$1318
current price $13.18WRITWAA 6Pcs Brass Plumbing Fittings 3 8 Inch Pex Hose Connector with Excellent Heat Resistance
B&K Industries 3/8 In. Black Malleable Iron Coupling 521-202BG - Black Iron Coupler $7.25

$725
current price $7.25B&K Industries 3/8 In. Black Malleable Iron Coupling 521-202BG - Black Iron Coupler
Uxcell 3/8 Inch ID Copper Coupling Fittings, 8 Pcs Rolled Tube Stop Straight Pipe Fitting Welding Joint for HVAC $9.99

$999
current price $9.99Uxcell 3/8 Inch ID Copper Coupling Fittings, 8 Pcs Rolled Tube Stop Straight Pipe Fitting Welding Joint for HVAC
Milton Industries Universal Coupling, Female 3/8" NPT $41.03

$4103
current price $41.03Milton Industries Universal Coupling, Female 3/8" NPT
Ridgid 632-96037 3-8 Inch X 35' 10 7M W-Male Coupling $130.58

$13058
current price $130.58Ridgid 632-96037 3-8 Inch X 35' 10 7M W-Male Coupling
35 out of 5 Stars. 3 reviews
Nibco Coupling with Stop,Wrot Copper,3/8",CxC 600DS 3/8 $8.72

$872
current price $8.72Nibco Coupling with Stop,Wrot Copper,3/8",CxC 600DS 3/8
15 out of 5 Stars. 1 reviews
Anvil 3/8" FNPT Galvanized Coupling 0311080006 $13.35 $13.35/1

$1335
current price $13.35$13.35/1
Anvil 3/8" FNPT Galvanized Coupling 0311080006
2 Pcs XFITTING Push Fit 3/8 Inch x 3/8 Inch, 3/8" Push Fit Coupling, 27-6-6=2XX $8.88

$888
current price $8.882 Pcs XFITTING Push Fit 3/8 Inch x 3/8 Inch, 3/8" Push Fit Coupling, 27-6-6=2XX
Thrifco Plumbing 9318019 3/8 Brass Coupling $5.45

$545
current price $5.45Thrifco Plumbing 9318019 3/8 Brass Coupling
Black 3/8-in Straight Coupling fits Pipe O.D. 0.675-in $6.97

$697
current price $6.97Black 3/8-in Straight Coupling fits Pipe O.D. 0.675-in
Watts PL-3020 Push Coupling Union, 3/8" $10.02 Was $11.99

Now$1002
current price Now $10.02, Was $11.99$11.99
Watts PL-3020 Push Coupling Union, 3/8"
Manufacturer Varies Straight Coupling,Aluminum, 3/8", FNPT ZUSA-PF-9381 $14.45

$1445
current price $14.45Manufacturer Varies Straight Coupling,Aluminum, 3/8", FNPT ZUSA-PF-9381
PPXCUP38 3/8" PLASTIC PEX COUPLING $6.47

$647
current price $6.47PPXCUP38 3/8" PLASTIC PEX COUPLING
Manufacturer Varies 3/8" x 1/8" FNPT 304 SS Reducing Coupling 40RC111N038018 $11.60

$1160
current price $11.60Manufacturer Varies 3/8" x 1/8" FNPT 304 SS Reducing Coupling 40RC111N038018
10 Pcs XFITTING Push Fit 3/8 Inch x 3/8 Inch, 3/8" Push Fit Coupling, 27-6-6=10XX $23.88

$2388
current price $23.8810 Pcs XFITTING Push Fit 3/8 Inch x 3/8 Inch, 3/8" Push Fit Coupling, 27-6-6=10XX
Other options to consider(166)
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