Top 51 Industrial Scientific Welded Tube Fittings
Last Updated: Sep 7, 2024 • 13,672 reviews analyzed
Our most popular Industrial Scientific Welded Tube Fittings products based on sales, online popularity and other expert reviews. Updated frequently.
![Anderson Metals 56123-0804 Brass Pipe Fitting, Reducing Hex Nipple, 1/2" Male Pipe x 1/4" Male Pipe](https://images-na.ssl-images-amazon.com/images/I/71l-Jaz-VVL._AC_US320_.jpg)
Anderson Metals 56123-0804 Brass Pipe Fitting, Reducing Hex Nipple, 1/2" Male Pipe x 1/4" Male Pipe
![TAISHER 5PCS Brass Reducer Hex Bushing Threaded Pipe Fitting 1/2" NPT Male x 1/8" NPT Female Adapter](https://images-na.ssl-images-amazon.com/images/I/719UinI4ybL._AC_US320_.jpg)
TAISHER 5PCS Brass Reducer Hex Bushing Threaded Pipe Fitting 1/2" NPT Male x 1/8" NPT Female Adapter
![TAISHER 5PCS Forging of 316L Stainless Steel Reducer Hex Bushing, 3/4" Male NPT to 1/2" Female NPT, Reducing Forging Pipe Adapter Fitting](https://images-na.ssl-images-amazon.com/images/I/712bkvRxReL._AC_US320_.jpg)
TAISHER 5PCS Forging of 316L Stainless Steel Reducer Hex Bushing, 3/4" Male NPT to 1/2" Female NPT, Reducing Forging Pipe Adapter Fitting
![HongBoW Hardware Brass Pipe Fitting, NPT Adapter, 3/8" Male Pipe x 3/8" Female Pipe (O.D: 0.675" I.D:0.58")](https://images-na.ssl-images-amazon.com/images/I/51W2r7mIvzL._AC_US320_.jpg)
HongBoW Hardware Brass Pipe Fitting, NPT Adapter, 3/8" Male Pipe x 3/8" Female Pipe (O.D: 0.675" I.D:0.58")
![TAISHER 2PCS Forging of 304 Stainless Steel Fitting, Reducer Adapter, 1/2" NPT Male x 1/2" G Thread (BSP) Female](https://images-na.ssl-images-amazon.com/images/I/61u-HyqX2QL._AC_US320_.jpg)
TAISHER 2PCS Forging of 304 Stainless Steel Fitting, Reducer Adapter, 1/2" NPT Male x 1/2" G Thread (BSP) Female
![Anderson Metals - 56123-0604 Brass Pipe Fitting, Reducing Hex Nipple, 3/8" Male Pipe x 1/4" Male Pipe](https://images-na.ssl-images-amazon.com/images/I/71l-Jaz-VVL._AC_US320_.jpg)
Anderson Metals - 56123-0604 Brass Pipe Fitting, Reducing Hex Nipple, 3/8" Male Pipe x 1/4" Male Pipe
![Legines Brass Pipe Fitting, Reducing Reducer Coupling, 3/8" NPT Female to 1/8" NPT Female (Pack of 2)](https://images-na.ssl-images-amazon.com/images/I/613QevIh37L._AC_US320_.jpg)
Legines Brass Pipe Fitting, Reducing Reducer Coupling, 3/8" NPT Female to 1/8" NPT Female (Pack of 2)
![CHARLOTTE PIPE 1 x 1/2 SCH40 REDUCER BUSHING SPGXS PRESSURE (1 Unit Piece)](https://images-na.ssl-images-amazon.com/images/I/61aE08oetrL._AC_US320_.jpg)
CHARLOTTE PIPE 1 x 1/2 SCH40 REDUCER BUSHING SPGXS PRESSURE (1 Unit Piece)
![Forney 75447 Brass Fitting, Reducer Adapter, 3/8-Inch Female NPT to 1/4-Inch Male NPT](https://images-na.ssl-images-amazon.com/images/I/61zpOv45DbL._AC_US320_.jpg)
Forney 75447 Brass Fitting, Reducer Adapter, 3/8-Inch Female NPT to 1/4-Inch Male NPT
![PATIKIL PVC Reducer Pipe Fitting 2.5x2 Inch Socket, Straight Coupling Adapter Connector, Grey](https://images-na.ssl-images-amazon.com/images/I/51W-wspYJEL._AC_US320_.jpg)
PATIKIL PVC Reducer Pipe Fitting 2.5x2 Inch Socket, Straight Coupling Adapter Connector, Grey
![Rutland Reducer for Brushes and Rods](https://images-na.ssl-images-amazon.com/images/I/81T50gTDUAL._AC_US320_.jpg)
Rutland Reducer for Brushes and Rods
![Flowline LM52-1400 PVC Reducer Bushing, 2" x 1" NPT Thread](https://images-na.ssl-images-amazon.com/images/I/71fc5zwn35L._AC_US320_.jpg)
Flowline LM52-1400 PVC Reducer Bushing, 2" x 1" NPT Thread
![Avanty Stainless Steel 304 Reducer Hex Bushing, 1-1/4" NPT Male to 1" NPT Female, Reducing Cast Pipe Adapter Fitting](https://images-na.ssl-images-amazon.com/images/I/51hNJNF+gAL._AC_US320_.jpg)
Avanty Stainless Steel 304 Reducer Hex Bushing, 1-1/4" NPT Male to 1" NPT Female, Reducing Cast Pipe Adapter Fitting
![Brass 1/4" NPT Plug Male Pipe Fitting Counter Sunk Thread Internal Hex Socket Style 5pcs (1/4)](https://images-na.ssl-images-amazon.com/images/I/61lxlxgyeIL._AC_US320_.jpg)
Brass 1/4" NPT Plug Male Pipe Fitting Counter Sunk Thread Internal Hex Socket Style 5pcs (1/4)
![GF Piping Systems PVC Pipe Fitting, Flange, Schedule 80, Gray, 2" NPT Female](https://images-na.ssl-images-amazon.com/images/I/81+oTQIxc5L._AC_US320_.jpg)
GF Piping Systems PVC Pipe Fitting, Flange, Schedule 80, Gray, 2" NPT Female
![PVC Reducing Nipple - NPT Size : 1 1/2" x 3/4"](https://images-na.ssl-images-amazon.com/images/I/61N+3q1vGFL._AC_US320_.jpg)
PVC Reducing Nipple - NPT Size : 1 1/2" x 3/4"
![Beduan Stainless Steel Reducer Coupling, 3/4" x 1/2" Female NPT Reducing Cast Pipe Fitting](https://images-na.ssl-images-amazon.com/images/I/51L6IMdl2QL._AC_US320_.jpg)
Beduan Stainless Steel Reducer Coupling, 3/4" x 1/2" Female NPT Reducing Cast Pipe Fitting
![Eldon James Y0-6BN Black Nylon Equal Barbed Y-Connector, 3/8" Hose Barb (Pack of 10)](https://images-na.ssl-images-amazon.com/images/I/51mfb0qhFsL._AC_US320_.jpg)
Eldon James Y0-6BN Black Nylon Equal Barbed Y-Connector, 3/8" Hose Barb (Pack of 10)
![Brennan Industries 6410-08-10-O Steel Straight Reducer, 3/4"-16 SAE ORB x 7/8"-14 SAE ORB Thread, Male O-Ring Boss x Female O-Ring Boss](https://images-na.ssl-images-amazon.com/images/I/619metWcFUL._AC_US320_.jpg)
Brennan Industries 6410-08-10-O Steel Straight Reducer, 3/4"-16 SAE ORB x 7/8"-14 SAE ORB Thread, Male O-Ring Boss x Female O-Ring Boss
![TAISHER 10PCS 304 Stainless Steel Pipe Fitting, Reducer Adapter, 3/8" Male NPTx 3/8" Female NPT](https://images-na.ssl-images-amazon.com/images/I/71spyyIdz4L._AC_US320_.jpg)
TAISHER 10PCS 304 Stainless Steel Pipe Fitting, Reducer Adapter, 3/8" Male NPTx 3/8" Female NPT
![Eldon James Y0-4BN Black Nylon Equal Barbed Y-Connector, 1/4" Hose Barb (Pack of 10)](https://images-na.ssl-images-amazon.com/images/I/51aRqWyrOqL._AC_US320_.jpg)
Eldon James Y0-4BN Black Nylon Equal Barbed Y-Connector, 1/4" Hose Barb (Pack of 10)
![Transition Reducer, 2.5in to 3in Stainless Steel Tubing Transition Adapter Reducer Pipe Connector](https://images-na.ssl-images-amazon.com/images/I/51bxsM1H1IL._AC_US320_.jpg)
Transition Reducer, 2.5in to 3in Stainless Steel Tubing Transition Adapter Reducer Pipe Connector
![LIONMAX Hex Bushing Reducer 3 PCS, 3/8 Inch NPT Male X 1/4 Inch NPT Female, Brass Pipe Fittings Threaded Reducer, with Sealing Tape](https://images-na.ssl-images-amazon.com/images/I/61lTHny-RYL._AC_US320_.jpg)
LIONMAX Hex Bushing Reducer 3 PCS, 3/8 Inch NPT Male X 1/4 Inch NPT Female, Brass Pipe Fittings Threaded Reducer, with Sealing Tape
![TAISHER 6PCS Forging of 304 Stainless Steel Fitting Hex Bushing, Reducer Adapter, Reducing Hex Nipple 1/2 Inch NPT x 3/8 Inch NPT](https://images-na.ssl-images-amazon.com/images/I/61U0wreT3CL._AC_US320_.jpg)
TAISHER 6PCS Forging of 304 Stainless Steel Fitting Hex Bushing, Reducer Adapter, Reducing Hex Nipple 1/2 Inch NPT x 3/8 Inch NPT
![Horiznext 1/4 npt male thread internal hex countersunk pipe plug fitting, stainless steel 304 (pack of 4)](https://images-na.ssl-images-amazon.com/images/I/61iaKcNfeHL._AC_US320_.jpg)
Horiznext 1/4 npt male thread internal hex countersunk pipe plug fitting, stainless steel 304 (pack of 4)
![Pysrych Forged 304 Stainless Steel Pipe Fitting Reducer Coupling 1/4" NPT Female x 1/8" NPT Female Adapter Reducing Coupler 1pc](https://images-na.ssl-images-amazon.com/images/I/513DCahMEFL._AC_US320_.jpg)
Pysrych Forged 304 Stainless Steel Pipe Fitting Reducer Coupling 1/4" NPT Female x 1/8" NPT Female Adapter Reducing Coupler 1pc
![Legines Brass Pipe Fitting Long Nipple, 1/8" NPT Male x 1/8" NPT Male Straight Connector, 1-1/2" Length 1200psi (Pack of 2)](https://images-na.ssl-images-amazon.com/images/I/51RYvKnynTL._AC_US320_.jpg)
Legines Brass Pipe Fitting Long Nipple, 1/8" NPT Male x 1/8" NPT Male Straight Connector, 1-1/2" Length 1200psi (Pack of 2)
![8" x 4" Round Reducer Duct Fitting, 26 ga.](https://images-na.ssl-images-amazon.com/images/I/51OMFljuLOS._AC_US320_.jpg)
8" x 4" Round Reducer Duct Fitting, 26 ga.
![Legines Brass Pipe Fitting Long Nipple, 3/8" NPT Male x 3/8" NPT Male Straight Connector, 1-1/2" Length 1200psi (Pack of 2)](https://images-na.ssl-images-amazon.com/images/I/51RYvKnynTL._AC_US320_.jpg)
Legines Brass Pipe Fitting Long Nipple, 3/8" NPT Male x 3/8" NPT Male Straight Connector, 1-1/2" Length 1200psi (Pack of 2)
![Stainless Steel 304 Cast Pipe Fitting, Reducing Coupling, Class 150, 1" X 1/2" NPT Female](https://images-na.ssl-images-amazon.com/images/I/81eEZsZIFTL._AC_US320_.jpg)
Stainless Steel 304 Cast Pipe Fitting, Reducing Coupling, Class 150, 1" X 1/2" NPT Female
![Metaland Stainless Reducer Bushing NPT 1/4" Male to 1/8" Female Reducing Pipe Fitting](https://images-na.ssl-images-amazon.com/images/I/51+6WKwdpkL._AC_US320_.jpg)
Metaland Stainless Reducer Bushing NPT 1/4" Male to 1/8" Female Reducing Pipe Fitting
![MAACFLOW Stainless Steel 1-1/4" Male NPT to 1" Female NPT Adapter Reducer Hex Bushing (Thread OD 1.47"- ID 1.17") (Pack of 2)](https://images-na.ssl-images-amazon.com/images/I/715WzkCYvyL._AC_US320_.jpg)
MAACFLOW Stainless Steel 1-1/4" Male NPT to 1" Female NPT Adapter Reducer Hex Bushing (Thread OD 1.47"- ID 1.17") (Pack of 2)
![Flowline LM52-3800 PVC Reducer Bushing, 4" x 2" NPT Thread](https://images-na.ssl-images-amazon.com/images/I/91Adc-IzDqL._AC_US320_.jpg)
Flowline LM52-3800 PVC Reducer Bushing, 4" x 2" NPT Thread
![Stainless Steel (304 Grade) 3" to 4" Weld Transition - Reducer - Nicely Formed](https://images-na.ssl-images-amazon.com/images/I/61ToCryP-YL._AC_US320_.jpg)
Stainless Steel (304 Grade) 3" to 4" Weld Transition - Reducer - Nicely Formed
![Gray Metal 6X5-611 BM0075 Stove Pipe Reducer, 6" x 5"](https://images-na.ssl-images-amazon.com/images/I/41oeXfvVCuL._AC_US320_.jpg)
Gray Metal 6X5-611 BM0075 Stove Pipe Reducer, 6" x 5"
![Vibrant Performance 2760 Black 3" x 3.25" x 3" 4-Ply Reducer Coupling](https://images-na.ssl-images-amazon.com/images/I/81BlpeQytQL._AC_US320_.jpg)
Vibrant Performance 2760 Black 3" x 3.25" x 3" 4-Ply Reducer Coupling
![C CLINK Brass Plated with Nickel Chrome Amp Input Reducer 1/0 to 4 Gauge Wire Reducer 2pcs](https://images-na.ssl-images-amazon.com/images/I/610NTLRn1YL._AC_US320_.jpg)
C CLINK Brass Plated with Nickel Chrome Amp Input Reducer 1/0 to 4 Gauge Wire Reducer 2pcs
![Brennan Industries 6410-10-08-O Steel Straight Reducer, 7/8"-14 SAE ORB x 3/4"-16 SAE ORB Thread, Male O-Ring Boss x Female O-Ring Boss](https://images-na.ssl-images-amazon.com/images/I/619metWcFUL._AC_US320_.jpg)
Brennan Industries 6410-10-08-O Steel Straight Reducer, 7/8"-14 SAE ORB x 3/4"-16 SAE ORB Thread, Male O-Ring Boss x Female O-Ring Boss
![TSX 304 Stainless Steel 3 Inch X 2 Inch NPT Reducer Coupling, Class 150](https://images-na.ssl-images-amazon.com/images/I/61XWrHQy5kL._AC_US320_.jpg)
TSX 304 Stainless Steel 3 Inch X 2 Inch NPT Reducer Coupling, Class 150
![Flowline LM52-1800 PVC Reducer Bushing, 2" x 1" NPT Thread](https://images-na.ssl-images-amazon.com/images/I/71CgXCNaaGL._AC_US320_.jpg)
Flowline LM52-1800 PVC Reducer Bushing, 2" x 1" NPT Thread
![Zurn Qest 1/2 in. Threaded x 1/2 in. Dia. Threaded Pex Manifold Cap](https://images-na.ssl-images-amazon.com/images/I/61XW6853sFL._AC_US320_.jpg)
Zurn Qest 1/2 in. Threaded x 1/2 in. Dia. Threaded Pex Manifold Cap
![BesNPT 1/2" Stainless Nipple NPT Male Hex Pipe Nipple Fitting Connector(Pack of 3)](https://images-na.ssl-images-amazon.com/images/I/51JhoumIdXL._AC_US320_.jpg)
BesNPT 1/2" Stainless Nipple NPT Male Hex Pipe Nipple Fitting Connector(Pack of 3)
![Flowline LM52-2400 PVC Reducer Bushing, 3" x 2" NPT Thread](https://images-na.ssl-images-amazon.com/images/I/61zJXCJoqfL._AC_US320_.jpg)
Flowline LM52-2400 PVC Reducer Bushing, 3" x 2" NPT Thread
![Kaufhof KWY131 4 Inch x 2-1/4 Inch OD 2 Inch ID Reducer For Wood Shop Dust Collection Replaces Jet JW1000](https://images-na.ssl-images-amazon.com/images/I/61kTLBZwEbL._AC_US320_.jpg)
Kaufhof KWY131 4 Inch x 2-1/4 Inch OD 2 Inch ID Reducer For Wood Shop Dust Collection Replaces Jet JW1000
![Brennan Industries 2406-03-04 Steel Non-Swivel Straight Reducer, 3/8"-24 SAE x 7/16"-20 SAE Thread, 3/16" Female JIC x 1/4" Male JIC, 0.500" Hex, 0.980" Length](https://images-na.ssl-images-amazon.com/images/I/61804JgCdvL._AC_US320_.jpg)
Brennan Industries 2406-03-04 Steel Non-Swivel Straight Reducer, 3/8"-24 SAE x 7/16"-20 SAE Thread, 3/16" Female JIC x 1/4" Male JIC, 0.500" Hex, 0.980" Length
![HeatFab 8" to 6" No Crimp Reducer - 2836B](https://images-na.ssl-images-amazon.com/images/I/41aPtn5IeQL._AC_US320_.jpg)
HeatFab 8" to 6" No Crimp Reducer - 2836B
![Watts ART3412 Anka 3/4 in. x 1/2 in. Fiberglass Reinforced Nylon Reducing Tee, Blue, Black](https://images-na.ssl-images-amazon.com/images/I/41lqOIFmBHL._AC_US320_.jpg)
Watts ART3412 Anka 3/4 in. x 1/2 in. Fiberglass Reinforced Nylon Reducing Tee, Blue, Black
![Goldpea High Pressure Stainless Steel 304 Equal Hex Nipple 1/4" NPT Male x 1/4" NPT Male Straight Connector Pipe Fitting 2pcs](https://images-na.ssl-images-amazon.com/images/I/61-lIhjYr-L._AC_US320_.jpg)
Goldpea High Pressure Stainless Steel 304 Equal Hex Nipple 1/4" NPT Male x 1/4" NPT Male Straight Connector Pipe Fitting 2pcs
![AVCRAY 3 Way Tee Reducer KF-25 to KF-16 Vacuum Fittings, ISO-KF Flange Size NW-25 to NW-16, Stainless Steel (KF25-KF16)](https://images-na.ssl-images-amazon.com/images/I/51RXLziiXRL._AC_US320_.jpg)
AVCRAY 3 Way Tee Reducer KF-25 to KF-16 Vacuum Fittings, ISO-KF Flange Size NW-25 to NW-16, Stainless Steel (KF25-KF16)
![1" Male NPT to 1/4" Female NPT Female Reducing/Reducer Bushing Brass Pipe Fitting](https://images-na.ssl-images-amazon.com/images/I/41op5q8CP1L._AC_US320_.jpg)
1" Male NPT to 1/4" Female NPT Female Reducing/Reducer Bushing Brass Pipe Fitting
![Kindsion Brass Male Pipe Hex Nipple Fitting, 2" x 2" NPT Threaded Straight Connector (Pack of 1, Length 47.3 mm)](https://images-na.ssl-images-amazon.com/images/I/71qMc0AXb0L._AC_US320_.jpg)
Kindsion Brass Male Pipe Hex Nipple Fitting, 2" x 2" NPT Threaded Straight Connector (Pack of 1, Length 47.3 mm)
EDITOR'S NOTES
During our Industrial Scientific Welded Tube Fittings research, we found hundreds Industrial Scientific Welded Tube Fittings products and shortlisted 51 quality products. We collected and analyzed 13,672 customer reviews through our big data system to write the Industrial Scientific Welded Tube Fittings list. We found that most customers choose Industrial Scientific Welded Tube Fittings with an average rating of 2.5 . The seller of top 1 product with rating 4.4 and has received honest feedback from 1,058 consumers.