$0.48
Sigma ProConnex 1/2-in EMT Set Screw Coupling Conduit Fittings - Die Cast Zinc - UL Listed - Indoor/Concrete-Tight - 1 Pack | 49240Lowe's$0.85
Sigma ProConnex 1/2-in Die Cast Zinc Compression Coupling Conduit Fittings - Connects 2 Lengths of EMT Conduit, UL Listed | 49260Lowe'sSAVE $1.42
$19.24$20.66
2" x 2" ProFlex Coupling (Cast Iron, PVC, Steel to Copper)Amazon$16.39
ZORO SELECT 222138 Reducing Coupling,Cast Iron,2 x 1 1/2 inZoro.com$9.17
1" Die Cast Zinc CouplingAmazonSAVE $3.73
$8.76$12.49
Fernco PROFLEX P3001-215 Shielded Pipe Coupling for Cast Iron, Plastic, or Steel to Copper Plumbing ConnectionsAmazon$13.99
1/2" Pipe Fitting Coupling, Home TZH 10 Pack 1/2" Malleable Iron Cast Pipe Coupling for Steam-punk Vintage Shelf Bracket DIY Plumbing Pipe Decor Furniture (10, 1/2")Amazon$60.99
TB WOODS L19042MM L-Jaw Coupling Hub,L190,Cast Iron,42mmZoro.com$99.21
Lovejoy 12425 Size L225 Standard Jaw Coupling Hub, Cast Iron, Inch, 1" Bore, 5" OD, 0.25" x 0.125" KeywayAmazon$7.08
Shielded 3 in. Cast Iron Transition Coupling Connects to CopperThe Home Depot$21.00
Lovejoy 36078 Size 6J S-Flex Coupling Flange, Cast Iron, Inch, 0.625" Bore, 4" OD, 1.31" Hub Length, 450 in-lbs Nominal Torque, 0.188" x 0.094" KeywayAmazon$8.59
uxcell Brass Cast Pipe Fittings Coupling 3/4 X 3/4 G Female Thread Gold Tone 2pcsAmazon$20.99
Morris Products 14871 EMT Set Screw Coupling, Zinc Die Cast, 3/4" Trade Size (Pack of 25)Amazon$4.68
Fernco 2-in. Ideal Flexible Neoprene Coupling Fittings for Cast Iron Pipe - Strong and Secure Sealing | PNH-22Lowe's$1.38and up
Gampak 1/2-in Electrical (EMT) Die Cast Zinc Transition Coupling Conduit Fittings | 49279Lowe's & 1 more$15.99
Beduan Stainless Steel Cast Pipe Fitting, Coupling, 1/2" x 1/2" Female Threaded (1" Length, Pack of 10)Amazon$1.99
Sigma Engineered Solutions Snap Lock 1/2 in. D Die-Cast Zinc Compression Coupling For EMT 1 pkAce Hardware$19.13
6 in. Clay x 4 in. Cast Iron PVC Flexible Coupling with Stainless Steel ClampsThe Home Depot$1.18and up
Sigma ProConnex 1/2-in Flexible Die Cast Zinc Screw-in Coupling Conduit Fittings | 49013Lowe's & 1 more$2.48and up
Sigma ProConnex 1-1/4-in Die Cast Zinc Set Screw Coupling Conduit Fittings | 02-55243Lowe's & 1 more$1.18
Sigma ProConnex 1-in Electrical (EMT) Die Cast Zinc Set Screw Coupling Conduit Fittings | 02-55242Lowe's$2.79
Sigma Engineered Solutions ProConnex 1 in. D Die-Cast Zinc Screw-In Coupling For FMC 1 pkAce Hardware$6.18
Shielded 3 in. Steel Transition Coupling Connects Plastic or Extra Heavy Cast IronThe Home Depot$12.99
LONG TAO 10PCS 1/2" Black Cast Pipe Fitting Coupling Threaded Pipe Nipples Industrial Piping Plumbing Supplies Pipe Furniture For DIY Decor or Industrial Vintage StyleAmazon$46.99
Fernco 6" ICON Pushfit DWV Internal Coupling Sheared Off Pipe Connector, Plastic, Cast Iron and CopperAmazon$1.18and up
Sigma ProConnex 1/2-in Electrical (EMT) Die Cast Zinc Compression Coupling Conduit Fittings | 49860Lowe's & 1 more$12.59
Yaocom EMT 1/2 Inch Conduit Fittings Screw Coupling Electrical Conduit Pipe Connector Zinc Die Cast Flexible Electrical Conduit Fittings for Tight(25 Pcs)Amazon$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$16.99
Gisafai 5 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$44.72
Hubbell-Raco 2763 Handy Ell Coupling, Threaded Male to EMT Set Screw Female, 90 Degree, 3/4", Die Cast Zinc (Pack of 5)Amazon$4.68
IDEAL-TRIDON 2-in. PVC No Hub Coupling for Cast Iron DWV Pipe - NSF Certified, IAPMO & CSA Listed | 621808ULowe's$47.25
JAY R. SMITH MANUFACTURING 0100C Coupling, Cast IronZoro.com$48.22
10" x 10" Flexible Coupling (Cast Iron or PVC to Cast Iron or PVC)AmazonSAVE $1.31
$23.98$25.29
4" x 3" ProFlex Shielded Coupling (Cast Iron to PVC, Steel, Extra-Heavy Cast Iron)Amazon$10.39
ZORO SELECT 4NXT3 Structural Pipe Fitting, Straight Coupling, Cast Iron, 1.25Zoro.com$7.99
Beduan Stainless Steel 1/2" Female 4 Way Cross Coupling Cast Pipe FittingAmazon$29.98
ThraKi For Bell & Gossett 118705 Coupler Coupling Cast Iron Assembly fits all Series 100Amazon$11.39
NIBCO 701D 3/4 Drain Coupling,Cast Bronze,C x C,3/4 InZoro.com$74.11
Martin 8SC 50-10 Quadraflex Spacer Coupling, Cast Iron, Inch, 5.45" OD, 2.375" LengthAmazon$17.99
Dixon Valve & Coupling BU9 Cast Carbon Steel Boss Clamp, 3/4" Hose ID, 1-10/64" - 1-20/64" Hose ODAmazonSAVE $2.99
$24.00$26.99
1-1/2" x 1-1/4" ProFlex Coupling (Cast Iron, PVC, Steel to Copper or 1" PVC)Amazon$52.39
Dixon Valve & Coupling DMH2025F Cast Brass Fire Equipment, Increaser Hex Nipple, 2" NPT Male x 2-1/2" NST MaleAmazon