ProLine 3/8 In. IPS & 1/2 In. CTS Brass Compression Repair Coupling - Power Townsend Company
3/4 IPS PVC Comp. Coupling
JONES STEPHENS 1/2 in. IPS Malleable Iron Compression Coupling, Long Pattern 3-3/8 in. Body Length for IPS and Sch. 40 Pipe Repair C11050 - The Home Depot