$2.78
Cast Iron Jaw Coupling Hub, Style L050, 1/4" Bore Diameter, No KeywayGlobal Industrial$5.59and up
Sigma Engineered Solutions ProConnex 3/4 in. D Die-Cast Zinc Compression Coupling For EMT 5 pkAce Hardware & 1 more$3.48
Sigma ProConnex 3/4-in Electrical (EMT) Die Cast Zinc Set Screw Coupling Conduit Fittings (5-Pack) | 44241Lowe's$4.38
Sigma ProConnex 1/2-in Electrical (EMT) Die Cast Zinc Compression Coupling Conduit Fittings (5-Pack) | 44260Lowe's$47.25
JAY R. SMITH MANUFACTURING 0100C Coupling, Cast IronZoro.comSAVE $3.75
$44.48$48.23
10" x 10" Flexible Coupling (Cast Iron or PVC to Cast Iron or PVC)Amazon$24.30
4" x 3" ProFlex Shielded Coupling (Cast Iron to PVC, Steel, Extra-Heavy Cast Iron)Amazon$20.65
2" x 2" ProFlex Coupling (Cast Iron, PVC, Steel to Copper)Amazon$23.29
ZORO SELECT 222142 Reducing Coupling, Cast Iron, 4 x 2 inZoro.com$10.39
ZORO SELECT 4NXT3 Structural Pipe Fitting, Straight Coupling, Cast Iron, 1.25Zoro.com$9.17
1" Die Cast Zinc CouplingAmazon$4.56
1-1/2" Cast Iron/Pvc Coupling X 1-1/2" Cast Iron/Pvc CouplingGlobal Industrial