DURA 1/2 in. Schedule 40 PVC Coupling Fitting C429-005 - The Home Depot
Aluminum NPT Half Coupling – Boyd Welding LLC
Half Inch Pipe Coupling Bung for thermometer mount, Steel - Weldable | BBQ Smoker Supply
Charlotte Pipe 1-1/2 in. PVC Schedule 40 S x S Coupling PVC021001400HD - The Home Depot
Amazon.com: SharkBite 1/2 Inch Coupling, Pack of 4, Push to Connect Brass Plumbing Fitting, PEX Pipe, Copper, CPVC, PE-RT, HDPE, U008LFA4 : Everything Else
1/4" .25" in Inch NPT 316 Stainless Steel Threaded Half Coupling Weld On Pipe Tube Bung Fitting SS for Home Brewing, Automotive, Industrial, Aerospace - Amazon.com