Product CatalogueStormwater SuppliesPoly FittingsPoly Riser3d. Poly Riser 20mm x 300mm (3/4") Back 3d. Poly Riser 20mm x 300mm (3/4") Product ID: ORI0200300 Brand: 2025-07-17 From: $2.44 AUD View or buy the Poly Riser Poly Fittings - 3d. Poly Riser 20mm x 300mm (3/4") from to discover other options and shipping details. Description Back to Poly Fittings - Poly Riser More Poly Riser and others in our range 1a. Poly Cut Off Riser 15mm x 150mm 7c. Poly Riser 50mm x 900mm (2") Poly All Thread Riser 20 mm x 300 mm 2a. Poly Riser 15mm x 50mm (1/2") 3g. Poly Riser 20mm x 1000mm (3/4") 4b. Poly Riser 25mm x 200mm (1") 4d. Poly Riser 25mm x 450mm (1") Poly Riser 15mm x 600mm (1/2") Poly Riser Articulated 15mm x 225mm (0.5in) ~10b. Poly Riser Continuous Thread 15mm x 300mm (1/2")