Shop threaded metal union pipe fittings

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$63.05
2-1/2 in. NPT Threaded Union (Brass Seat) - 150 Black Malleable Iron Pipe Fitting - UL/FM
BFO
60-day returns (most items)
$63.05
2-1/2 in. NPT Threaded Union (Brass Seat) - 150 Black Malleable Iron Pipe Fitting - UL/FM
BFO
$49.32
1 in. NPT Threaded Union (Brass Seat) - 300 Black Malleable Iron Pipe Fitting - UL/FM
BFO
60-day returns (most items)
$49.32
1 in. NPT Threaded Union (Brass Seat) - 300 Black Malleable Iron Pipe Fitting - UL/FM
BFO
$127.49
Merit Brass Pipe Union: 1-1/4", 304 Stainless Steel - FNPT, Threaded, ISO, 150 Psi | Part K487-20
MSC Direct
$127.49
Merit Brass Pipe Union: 1-1/4", 304 Stainless Steel - FNPT, Threaded, ISO, 150 Psi | Part K487-20
MSC Direct
$27.99
Supply Giant DDNV0001 1" No Lead Copper Union Fitting With Sweat To Male Threaded Connects
Amazon.com
$27.99
Supply Giant DDNV0001 1" No Lead Copper Union Fitting With Sweat To Male Threaded Connects
Amazon.com
$25.55
EZ-FLUID Plumbing 1" C X MIP Brass Copper Union C X Male Iron Threaded (Sweat Sockets X MIP) Connection Copper Pipe Fitting,Straight(1 Pack)
Amazon.com
$25.55
EZ-FLUID Plumbing 1" C X MIP Brass Copper Union C X Male Iron Threaded (Sweat Sockets X MIP) Connection Copper Pipe Fitting,Straight(1 Pack)
Amazon.com
$59.48
1-1/2 in. NPT Threaded - Union - 125 Lead Free Brass Pipe Fitting - ANSI/NSF 61-4
BFO
60-day returns (most items)
$59.48
1-1/2 in. NPT Threaded - Union - 125 Lead Free Brass Pipe Fitting - ANSI/NSF 61-4
BFO
$548.16
Merit Brass Pipe Union: 3", 316 Stainless Steel - FNPT X FNPT, Threaded, ISO, 150 Psi | Part K687-48
MSC Direct
$548.16
Merit Brass Pipe Union: 3", 316 Stainless Steel - FNPT X FNPT, Threaded, ISO, 150 Psi | Part K687-48
MSC Direct
$101.81
1 in. Female NPT Threaded - Union - 1000 Barstock 316 Stainless Steel Pipe Fitting
BFO
60-day returns (most items)
$101.81
1 in. Female NPT Threaded - Union - 1000 Barstock 316 Stainless Steel Pipe Fitting
BFO
$28.25
$31.21
Merit Brass | Bothwell Pipe Union: 1/2", 304 Stainless Steel - Socket Weld X Socket Weld, Threaded, 3000 Psi | Part SW3487D-08
MSC Direct
$28.25
$31.21
Merit Brass | Bothwell Pipe Union: 1/2", 304 Stainless Steel - Socket Weld X Socket Weld, Threaded, 3000 Psi | Part SW3487D-08
MSC Direct
$77.05
Merit Brass Pipe Union: 1-1/4", 316 Stainless Steel - FNPT X FNPT, Threaded, ISO, 150 Psi | Part K687-20
MSC Direct
$77.05
Merit Brass Pipe Union: 1-1/4", 316 Stainless Steel - FNPT X FNPT, Threaded, ISO, 150 Psi | Part K687-20
MSC Direct
$20.49
Merit Brass Pipe Union: 1/2", 304 Stainless Steel - FNPT, Threaded, ISO, 150 Psi | Part K487-08
MSC Direct
$20.49
Merit Brass Pipe Union: 1/2", 304 Stainless Steel - FNPT, Threaded, ISO, 150 Psi | Part K487-08
MSC Direct
$49.59
1-1/4 in. NPT Threaded - Union - 150 Cast 304 Stainless Steel Pipe Fitting
BFO
60-day returns (most items)
$49.59
1-1/4 in. NPT Threaded - Union - 150 Cast 304 Stainless Steel Pipe Fitting
BFO
$186.90
Smith Cooper Cast 150 Stainless Steel 2 1/2 in. Union Fitting - Threaded - Fig. S3116U - 4381037690
John M. Ellsworth Co., Inc.
$186.90
Smith Cooper Cast 150 Stainless Steel 2 1/2 in. Union Fitting - Threaded - Fig. S3116U - 4381037690
John M. Ellsworth Co., Inc.
$156.73
Smith Cooper 3000 Forged Stainless Steel 2 in. Union Fitting - Threaded - Fig. S4036U - 4307002272
John M. Ellsworth Co., Inc.
$156.73
Smith Cooper 3000 Forged Stainless Steel 2 in. Union Fitting - Threaded - Fig. S4036U - 4307002272
John M. Ellsworth Co., Inc.
$65.23
2 in. NPT Threaded - Union - 3000 Forged Carbon Steel Pipe Fitting - MSS-SP-83
BFO
60-day returns (most items)
$65.23
2 in. NPT Threaded - Union - 3000 Forged Carbon Steel Pipe Fitting - MSS-SP-83
BFO
$77.24
Merit Brass Brass Pipe Union: 3/4" Fitting, Threaded, FNPT X FNPT, Class 125, Lead Free - 125 Psi, Brass | Part XNL187-12
MSC Direct
$77.24
Merit Brass Brass Pipe Union: 3/4" Fitting, Threaded, FNPT X FNPT, Class 125, Lead Free - 125 Psi, Brass | Part XNL187-12
MSC Direct
$11.14
Made In USA | Anvil Black Union: 3/4", Threaded - Malleable Iron, Class 150 | Part E.BU
MSC Direct
$11.14
Made In USA | Anvil Black Union: 3/4", Threaded - Malleable Iron, Class 150 | Part E.BU
MSC Direct
$55.16
Made In USA | ASC Engineered Solutions Black Union: 1-1/4", Threaded - Forged Carbon Steel, Class 3000 | Part 0361501406
MSC Direct
$55.16
Made In USA | ASC Engineered Solutions Black Union: 1-1/4", Threaded - Forged Carbon Steel, Class 3000 | Part 0361501406
MSC Direct
$45.80
Made In USA | Anvil Black Union: 1-1/2", Threaded - Malleable Iron, Class 300 | Part 1D.B300U
MSC Direct
$45.80
Made In USA | Anvil Black Union: 1-1/2", Threaded - Malleable Iron, Class 300 | Part 1D.B300U
MSC Direct
$147.21
Value Collection Black Pipe Fittings: Fitting Type: Union, Fitting Size: 4", End Connections: Threaded, Material: Malleable Iron - Malleable Iron, EN
MSC Direct
$147.21
Value Collection Black Pipe Fittings: Fitting Type: Union, Fitting Size: 4", End Connections: Threaded, Material: Malleable Iron - Malleable Iron, EN
MSC Direct
$40.41
1 in. NPT Threaded - Union - 125 Bronze Pipe Fitting - UL Listed
BFO
60-day returns (most items)
$40.41
1 in. NPT Threaded - Union - 125 Bronze Pipe Fitting - UL Listed
BFO
$18.95
Merit Brass Pipe Union: 3/8", 304 Stainless Steel - FNPT, Threaded, ISO, 150 Psi | Part K487-06
MSC Direct
$18.95
Merit Brass Pipe Union: 3/8", 304 Stainless Steel - FNPT, Threaded, ISO, 150 Psi | Part K487-06
MSC Direct
$25.92
Made In USA | Anvil Black Union: 1-1/2", Threaded - Malleable Iron, Class 150 | Part 1D.BU
MSC Direct
$25.92
Made In USA | Anvil Black Union: 1-1/2", Threaded - Malleable Iron, Class 150 | Part 1D.BU
MSC Direct
$30.95
APPLETON ELECTRIC Rigid Union, 3/4 In, Threaded, Aluminum, Plain, Silver, UNY75NR-A
Zoro.com
$30.95
APPLETON ELECTRIC Rigid Union, 3/4 In, Threaded, Aluminum, Plain, Silver, UNY75NR-A
Zoro.com
$148.82
1-1/2 in. NPT Threaded - Union - 316/316L Stainless Steel - 3000 Forged Pipe Fitting - A/SA182
BFO
60-day returns (most items)
$148.82
1-1/2 in. NPT Threaded - Union - 316/316L Stainless Steel - 3000 Forged Pipe Fitting - A/SA182
BFO
$103.82
1-1/4 in. NPT Threaded - Union - 300 Malleable Iron Galvanized Pipe Fitting - UL Listed
BFO
60-day returns (most items)
$103.82
1-1/4 in. NPT Threaded - Union - 300 Malleable Iron Galvanized Pipe Fitting - UL Listed
BFO
$17.55
1/8" Cast Threaded Female Threaded Union 150 316 Stainless SN:S3016U 001 At Hydraulics Direct
HD Store
$17.55
1/8" Cast Threaded Female Threaded Union 150 316 Stainless SN:S3016U 001 At Hydraulics Direct
HD Store
$231.96
Smith Cooper 150 Black Malleable Iron 4 in. Union Pipe Fittings - Threaded - Fig. 3463 - 4316002822
John M. Ellsworth Co., Inc.
$231.96
Smith Cooper 150 Black Malleable Iron 4 in. Union Pipe Fittings - Threaded - Fig. 3463 - 4316002822
John M. Ellsworth Co., Inc.
$85.10
Value Collection Black Pipe Fittings: Fitting Type: Union, Fitting Size: 1", End Connections: Threaded, Material: Malleable Iron - Malleable Iron
MSC Direct
$85.10
Value Collection Black Pipe Fittings: Fitting Type: Union, Fitting Size: 1", End Connections: Threaded, Material: Malleable Iron - Malleable Iron
MSC Direct
$30.49
APPLETON ELECTRIC Rigid Union, 3/4 In, Threaded, Aluminum, Plain, Silver, UNF75NR-A
Zoro.com
$30.49
APPLETON ELECTRIC Rigid Union, 3/4 In, Threaded, Aluminum, Plain, Silver, UNF75NR-A
Zoro.com
$32.99
1/2 in FNPT 316 Stainless Steel Threaded Union, Class 3000
Zoro.com
$32.99
1/2 in FNPT 316 Stainless Steel Threaded Union, Class 3000
Zoro.com
$345.26
Union: Red Brass, 3 in X 3 in Fitting Pipe Size, Female NPT X Female NPT Model: 1VFL8
Grainger
$345.26
Union: Red Brass, 3 in X 3 in Fitting Pipe Size, Female NPT X Female NPT Model: 1VFL8
Grainger
$402.88
3" Forged Threaded Female Threaded Union 3000 316 Stainless SN: S4036U030 At Hydraulics Direct
HD Store
$402.88
3" Forged Threaded Female Threaded Union 3000 316 Stainless SN: S4036U030 At Hydraulics Direct
HD Store
$61.19
2" FNPT 316 SS Threaded Union
Zoro.com
$61.19
2" FNPT 316 SS Threaded Union
Zoro.com
$62.83
Smith Cooper 3000 Forged Carbon Steel 2 in. Union Fitting - Threaded - Fig. 42U 3 - 4308002566
John M. Ellsworth Co., Inc.
$62.83
Smith Cooper 3000 Forged Carbon Steel 2 in. Union Fitting - Threaded - Fig. 42U 3 - 4308002566
John M. Ellsworth Co., Inc.
$109.95
Fastpipe Industrial Rigid Pipe Threaded Adapter, 4" Union Plug X 2" Female NPT, FI8221
Global Industrial
$109.95
Fastpipe Industrial Rigid Pipe Threaded Adapter, 4" Union Plug X 2" Female NPT, FI8221
Global Industrial
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    Shop threaded metal union pipe fittings

    Sponsored
    About our ads
    $63.05
    2-1/2 in. NPT Threaded Union (Brass Seat) - 150 Black Malleable Iron Pipe Fitting - UL/FM
    BFO
    60-day returns (most items)
    $63.05
    2-1/2 in. NPT Threaded Union (Brass Seat) - 150 Black Malleable Iron Pipe Fitting - UL/FM
    BFO
    $49.32
    1 in. NPT Threaded Union (Brass Seat) - 300 Black Malleable Iron Pipe Fitting - UL/FM
    BFO
    60-day returns (most items)
    $49.32
    1 in. NPT Threaded Union (Brass Seat) - 300 Black Malleable Iron Pipe Fitting - UL/FM
    BFO
    $127.49
    Merit Brass Pipe Union: 1-1/4", 304 Stainless Steel - FNPT, Threaded, ISO, 150 Psi | Part K487-20
    MSC Direct
    $127.49
    Merit Brass Pipe Union: 1-1/4", 304 Stainless Steel - FNPT, Threaded, ISO, 150 Psi | Part K487-20
    MSC Direct
    $27.99
    Supply Giant DDNV0001 1" No Lead Copper Union Fitting With Sweat To Male Threaded Connects
    Amazon.com
    $27.99
    Supply Giant DDNV0001 1" No Lead Copper Union Fitting With Sweat To Male Threaded Connects
    Amazon.com
    $25.55
    EZ-FLUID Plumbing 1" C X MIP Brass Copper Union C X Male Iron Threaded (Sweat Sockets X MIP) Connection Copper Pipe Fitting,Straight(1 Pack)
    Amazon.com
    $25.55
    EZ-FLUID Plumbing 1" C X MIP Brass Copper Union C X Male Iron Threaded (Sweat Sockets X MIP) Connection Copper Pipe Fitting,Straight(1 Pack)
    Amazon.com
    $59.48
    1-1/2 in. NPT Threaded - Union - 125 Lead Free Brass Pipe Fitting - ANSI/NSF 61-4
    BFO
    60-day returns (most items)
    $59.48
    1-1/2 in. NPT Threaded - Union - 125 Lead Free Brass Pipe Fitting - ANSI/NSF 61-4
    BFO
    $548.16
    Merit Brass Pipe Union: 3", 316 Stainless Steel - FNPT X FNPT, Threaded, ISO, 150 Psi | Part K687-48
    MSC Direct
    $548.16
    Merit Brass Pipe Union: 3", 316 Stainless Steel - FNPT X FNPT, Threaded, ISO, 150 Psi | Part K687-48
    MSC Direct
    $101.81
    1 in. Female NPT Threaded - Union - 1000 Barstock 316 Stainless Steel Pipe Fitting
    BFO
    60-day returns (most items)
    $101.81
    1 in. Female NPT Threaded - Union - 1000 Barstock 316 Stainless Steel Pipe Fitting
    BFO
    $28.25
    $31.21
    Merit Brass | Bothwell Pipe Union: 1/2", 304 Stainless Steel - Socket Weld X Socket Weld, Threaded, 3000 Psi | Part SW3487D-08
    MSC Direct
    $28.25
    $31.21
    Merit Brass | Bothwell Pipe Union: 1/2", 304 Stainless Steel - Socket Weld X Socket Weld, Threaded, 3000 Psi | Part SW3487D-08
    MSC Direct
    $77.05
    Merit Brass Pipe Union: 1-1/4", 316 Stainless Steel - FNPT X FNPT, Threaded, ISO, 150 Psi | Part K687-20
    MSC Direct
    $77.05
    Merit Brass Pipe Union: 1-1/4", 316 Stainless Steel - FNPT X FNPT, Threaded, ISO, 150 Psi | Part K687-20
    MSC Direct
    $20.49
    Merit Brass Pipe Union: 1/2", 304 Stainless Steel - FNPT, Threaded, ISO, 150 Psi | Part K487-08
    MSC Direct
    $20.49
    Merit Brass Pipe Union: 1/2", 304 Stainless Steel - FNPT, Threaded, ISO, 150 Psi | Part K487-08
    MSC Direct
    $49.59
    1-1/4 in. NPT Threaded - Union - 150 Cast 304 Stainless Steel Pipe Fitting
    BFO
    60-day returns (most items)
    $49.59
    1-1/4 in. NPT Threaded - Union - 150 Cast 304 Stainless Steel Pipe Fitting
    BFO
    $186.90
    Smith Cooper Cast 150 Stainless Steel 2 1/2 in. Union Fitting - Threaded - Fig. S3116U - 4381037690
    John M. Ellsworth Co., Inc.
    $186.90
    Smith Cooper Cast 150 Stainless Steel 2 1/2 in. Union Fitting - Threaded - Fig. S3116U - 4381037690
    John M. Ellsworth Co., Inc.
    $156.73
    Smith Cooper 3000 Forged Stainless Steel 2 in. Union Fitting - Threaded - Fig. S4036U - 4307002272
    John M. Ellsworth Co., Inc.
    $156.73
    Smith Cooper 3000 Forged Stainless Steel 2 in. Union Fitting - Threaded - Fig. S4036U - 4307002272
    John M. Ellsworth Co., Inc.
    $65.23
    2 in. NPT Threaded - Union - 3000 Forged Carbon Steel Pipe Fitting - MSS-SP-83
    BFO
    60-day returns (most items)
    $65.23
    2 in. NPT Threaded - Union - 3000 Forged Carbon Steel Pipe Fitting - MSS-SP-83
    BFO
    $77.24
    Merit Brass Brass Pipe Union: 3/4" Fitting, Threaded, FNPT X FNPT, Class 125, Lead Free - 125 Psi, Brass | Part XNL187-12
    MSC Direct
    $77.24
    Merit Brass Brass Pipe Union: 3/4" Fitting, Threaded, FNPT X FNPT, Class 125, Lead Free - 125 Psi, Brass | Part XNL187-12
    MSC Direct
    $11.14
    Made In USA | Anvil Black Union: 3/4", Threaded - Malleable Iron, Class 150 | Part E.BU
    MSC Direct
    $11.14
    Made In USA | Anvil Black Union: 3/4", Threaded - Malleable Iron, Class 150 | Part E.BU
    MSC Direct
    $55.16
    Made In USA | ASC Engineered Solutions Black Union: 1-1/4", Threaded - Forged Carbon Steel, Class 3000 | Part 0361501406
    MSC Direct
    $55.16
    Made In USA | ASC Engineered Solutions Black Union: 1-1/4", Threaded - Forged Carbon Steel, Class 3000 | Part 0361501406
    MSC Direct