Homewerks Worldwide 1/2 in. PVC Compression Coupling 511-43-12-12H - The Home Depot
Amazon.com: Boltigen 1-1/2 PVC Pool Pump Fitting Coupling, 1.5" NPT Male x 1.5" Slip Union Socket Joint Adapter Connector Replacement for Pool Spa Pump : Patio, Lawn & Garden
Airopower Systems Multi Socketing Pvc Coupler Machine