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: 2025-09-04 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 3h. Poly Riser 20mm x 1500mm (3/4") Poly Riser 15mm x 600mm (1/2") 3f. Poly Riser 20mm x 600mm (3/4") 2h. Poly Riser 15mm x 457mm (1/2") 3c. Poly Riser 20mm x 200mm (3/4") Poly All Thread Riser 20 mm x 300 mm 3f. Poly Riser 20mm x 750mm (0.75") 1a. Poly Cut Off Riser 15mm x 150mm 6b. Poly Riser 40mm x 450mm (1 1/2") 4d. Poly Riser 25mm x 450mm (1")