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: 2025-08-12 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 7b. Poly Riser 50mm x 450mm (2") 2f. Poly Riser 15mm x 300mm (1/2") 7c. Poly Riser 50mm x 900mm (2") 3h. Poly Riser 20mm x 1500mm (3/4") Poly Cut Off Riser 20mm x 300mm (3 by 4") 4e. Poly Riser 25mm x 900mm (1") 3e. Poly Riser 20mm x 500mm (3/4") Poly Riser Continuous Thread 15mm x 150mm (1 by 2") 6c. Poly Riser 40mm x 900mm (1 1|2") 6a. Poly Riser 40mm x 150mm (1 1/2")