Product CatalogueStormwater SuppliesPressure Fittings PVCBarrel Unionh. PVC Barrel Union Coupling 100mm (4") Back h. PVC Barrel Union Coupling 100mm (4") Product ID: V12BU100 Brand: 2025-05-25 From: $73.56 AUD View or buy the Barrel Union Pressure Fittings PVC - h. PVC Barrel Union Coupling 100mm (4") from to discover other options and shipping details. Description Back to Pressure Fittings PVC - Barrel Union More Barrel Union and others in our range b. PVC Barrel Union Coupling 20mm (3/4") d. PVC Barrel Union Coupling 32mm (1 1/4") e. PVC Barrel Union Coupling 40mm (1 1/2") f. PVC Barrel Union Coupling 50mm (2") c. PVC Barrel Union Coupling 25mm (1") a. PVC Barrel Union Coupling 15mm (1/2") h. PVC Barrel Union Coupling 100mm (4") g. PVC Barrel Union Coupling 80mm (3") 7a. PVC Coupling Reducing 100mm x 50mm (4"x 2") REDBACK Wallmount Combination Combo 18 channel x 10A Dimmer + 6 channel x 10Amp DMX controlled relay rack with RCBO and Bypass switch internal Screw Terminal outputs