$4.28
Halex 1/2-in Electrical (EMT) Die Cast Zinc Set Screw Coupling Conduit Fittings (10-Pack) | 21221Lowe's$0.85
Sigma ProConnex 1/2-in Die Cast Zinc Compression Coupling Conduit Fittings - Connects 2 Lengths of EMT Conduit, UL Listed | 49260Lowe's$57.89
ZORO SELECT 222152 Reducing Coupling, Cast Iron, 6 x 2 inZoro.com$23.29
ZORO SELECT 222142 Reducing Coupling, Cast Iron, 4 x 2 inZoro.com$13.99
FINISH THOMPSON 107300 Coupling Half,Cast AluminumZoro.com$16.39
ZORO SELECT 222138 Reducing Coupling,Cast Iron,2 x 1 1/2 inZoro.com$6.33
Shielded 3 in. Steel Transition Coupling Connects Cast Iron to Plastic Extra Heavy Cast IronThe Home Depot$6.34
Shielded 2 in. Steel Transition Coupling Connects Cast Iron to PlasticThe Home Depot$19.99
Shielded 8 in. Steel Transition Coupling Connects Cast Iron to Plastic or Extra Heavy Cast IronThe Home Depot$16.17
Shielded 5 in. Steel Transition Coupling Connects Cast Iron to Plastic or Extra Heavy Cast IronThe Home Depot$7.81
Shielded 4 in. Steel Transition Coupling Connects Cast Iron to Plastic or Extra Heavy Cast IronThe Home Depot$17.32
Shielded 6 in. Steel Transition Coupling Connects Cast Iron to Plastic or Extra Heavy Cast IronThe Home Depot$5.66
Shielded 2 in. Steel Transition Coupling Connects Cast Iron Plastic or 2 in. Plastic to SteelThe Home Depot$60.99
TB WOODS L19042MM L-Jaw Coupling Hub,L190,Cast Iron,42mmZoro.com$9.27
Shielded 4 in. Cast Iron Transition Coupling Connects CopperThe Home Depot$7.08
Shielded 3 in. Cast Iron Transition Coupling Connects to CopperThe Home Depot$5.61
Shielded 1-1/2 in. Transition Coupling Connects Cast Iron, Plastic, or Steel to 1-1/2 in. Copper or 1-1/4 in. PlasticThe Home Depot$1.38and up
Gampak 1/2-in Electrical (EMT) Die Cast Zinc Transition Coupling Conduit Fittings | 49279Lowe's & 1 more$8.99
Sigma Engineered Solutions 2 in. D Die-Cast Zinc Compression Coupling For EMT 1 pkAce Hardware$13.46and up
Sigma ProConnex 3/4-in Electrical (EMT) Die Cast Zinc Compression Coupling Conduit Fittings (25-Pack) | TC-612Lowe's & 1 more$5.59
Sigma Engineered Solutions ProConnex 3/4 in. D Die-Cast Zinc Compression Coupling For EMT 5 pkAce Hardware$31.99
Sigma Engineered Solutions ProConnex 1/2 in. D Die-Cast Zinc Compression Coupling For EMT 50 pkAce Hardware$4.99
Sigma Engineered Solutions 1-1/4 in. D Die-Cast Zinc Compression Coupling For EMT 1 pkAce Hardware$2.59
Sigma Engineered Solutions Snap Lock 1/2 in. D Die-Cast Zinc Compression Coupling For EMT 1 pkAce Hardware$3.99
Sigma Engineered Solutions ProConnex 3/4 in. D Die-Cast Zinc Combination Coupling For EMT/Flex 1 pkAce Hardware$3.99
Sigma Engineered Solutions ProConnex 3/4 in. D Die-Cast Zinc Combination Coupling For EMT/Flex 1 pkAce Hardware$3.49
Sigma Engineered Solutions 1 in. D Die-Cast Zinc Compression Coupling For AC, MC and FMC/RWFMC 1 pkAce Hardware$19.13
6 in. Clay x 4 in. Cast Iron PVC Flexible Coupling with Stainless Steel ClampsThe Home Depot$5.99
Sigma Engineered Solutions ProConnex 2 in. D Die-Cast Zinc Set Screw Coupling For EMT 1 pkAce Hardware$2.79
Sigma Engineered Solutions ProConnex 1 in. D Die-Cast Zinc Screw-In Coupling For FMC 1 pkAce Hardware$7.23
Shielded 4 in. Steel Transition Coupling Connects Plastic or Extra Heavy Cast IronThe Home Depot$6.18
Shielded 3 in. Steel Transition Coupling Connects Plastic or Extra Heavy Cast IronThe Home Depot$1.39
Sigma Engineered Solutions ProConnex 1/2 in. D Die-Cast Zinc Screw-In Coupling For FMC 1 pkAce Hardware$2.99
Sigma Engineered Solutions ProConnex 3/4 in. D Die-Cast Zinc Screw-In Coupling For FMC 1 pkAce Hardware$7.99
Sigma Engineered Solutions 2-1/2 in. D Die-Cast Zinc Set Screw Coupling For EMT 1 pkAce Hardware$3.49
Sigma Engineered Solutions ProConnex 1-1/4 in. D Die-Cast Zinc Set Screw Coupling For EMT 1 pkAce Hardware$4.49
Sigma Engineered Solutions ProConnex 1-1/2 in. D Die-Cast Zinc Set Screw Coupling For EMT 1 pkAce Hardware$6.45
Shielded 3 in. Steel Transition Coupling Connects Plastic or Extra Heavy Cast Iron to CopperThe Home Depot$2.79
Sigma Engineered Solutions 1 in. D Die-Cast Zinc Rain-Tight Compression Coupling For EMT 1 pkAce Hardware$1.79
Sigma Engineered Solutions 3/4 in. D Die-Cast Zinc Rain-Tight Compression Coupling For EMT 1 pkAce Hardware$1.29
Sigma Engineered Solutions 1/2 in. D Die-Cast Zinc Rain-Tight Compression Coupling For EMT 1 pkAce Hardware$4.60
Shielded 1-1/2 in. Transition Coupling Connects 1-1/2 in. Tubular to 2 in. Cast Iron, Plastic, or SteelThe Home Depot$28.99
Gisafai 10 Pcs EMT Conduit Fittings Inside Corner Pull Elbow, EMT to EMT 90 Degree Capped Corner Coupling, Combo Head Set Screw, Zinc Die Cast, Silver (1/2 Inch)Amazon$47.25
JAY R. SMITH MANUFACTURING 0100C Coupling, Cast IronZoro.com$10.39
ZORO SELECT 4NXT3 Structural Pipe Fitting, Straight Coupling, Cast Iron, 1.25Zoro.com$16.49
ZORO SELECT 30LW92 Structural Pipe Fitting, Straight Coupling, Cast Iron, 2 inZoro.com$11.95
ZORO SELECT 4NXU9 Structural Pipe Fitting, Straight Coupling, Cast Iron, 1.5 inZoro.com$11.39
NIBCO 701D 3/4 Drain Coupling,Cast Bronze,C x C,3/4 InZoro.com$8.40
Horiznext 3/4 npt Stainless Steel fitting, home brew adapter female threaded pipe cast coupling for plumbing tubing shower hose water heating extenderAmazon$10.98
Fernco 4-in. Ideal Flexible Neoprene Coupling Fittings for Cast Iron Pipe - Quick and Simple Connection Stainless Steel | PNH-44Lowe's$18.99
TAISHER 10PCS 304 Stainless Steel Cast Pipe Fitting, Coupling, 3/4" x 3/4" NPT Female ThreadedAmazon$14.99
NIBCO 3/4 in. FPT X 3/4 in. D FPT Cast Bronze Drain Coupling 1 pkAce Hardware$19.99
PATIKIL 304 Stainless Steel Pipe Fitting 3/8" NPT x 3/8" NPT Female Thread, 4 Pcs 4inch/100mm Length Nipple Cast Pipe Coupling Fitting ConnectorAmazon$5.19
ANVIL 0300149002 1" x 1/2" Cast Iron Concentric Reducer Coupling Class 125Zoro.com$32.75
ANVIL 0300152600 1" x 3/4" Cast Iron Eccentric Reducer Coupling Class 125Zoro.com$38.55
ANVIL 0300152808 1" x 1/2" Cast Iron Eccentric Reducer Coupling Class 125Zoro.com$39.89
ANVIL 0300153004 1-1/4" x 1" Cast Iron Eccentric Reducer Coupling Class 125Zoro.com$91.19
ANVIL 0300154606 2" x 1-1/4" FNPT Cast Iron Eccentric Reducer Coupling Class 125Zoro.com$70.39
ANVIL 0300154200 1-1/2" x 1/2" Cast Iron Eccentric Reducer Coupling Class 125Zoro.com$37.35
ANVIL 0300150208 1-1/2" x 3/4" Cast Iron Concentric Reducer Coupling Class 125Zoro.com