Spears 498 Series PVC Pipe Fitting, Union with EPDM O-Ring, Schedule 40, 1/2" NPT Female: Industrial Pipe Fittings: Amazon.com: Industrial & Scientific
Amazon.com: 6Pcs 3/4" PVC Union Coupling Pipe Fitting (Socket x Socket) 3/4Inch PVC Slip Union PVC Adapter Coupling Schedule 40, EPDM O-Ring, White : Industrial & Scientific
SANKING DIN White 20mm PVC Union Fitting Pipe Union Coupling: Amazon.com: Industrial & Scientific
Spears 497 Series PVC Pipe Fitting, Union with EPDM O-Ring, Schedule 40, 3/4" Socket: Industrial Pipe Fittings: Amazon.com: Industrial & Scientific
NDS Schedule 40 3/4 in. Slip x 3/4 in. Dia. Slip PVC Union - - Amazon.com
Schedule 40 PVC Pipe Slip x Slip Union (1" Dia.) - 457-010: Amazon.com: Tools & Home Improvement
Amazon.com: 2Pcs 1 Inch PVC Union Coupling Pipe Fitting Adapter (Socket x Socket) 1 Inch PVC Slip Union PVC Adapter Coupling Schedule 40, EPDM O-Ring, White : Industrial & Scientific
Amazon.com: Van Enterprises 2" PRO Series PVC Male/Female Union Fitting Adapter - Schedule 80 [Available 1.5" and 2" Union] : Industrial & Scientific