Product CatalogueStormwater SuppliesPoly FittingsPoly Riser6b. Poly Riser 40mm x 450mm (1 1/2") Back 6b. Poly Riser 40mm x 450mm (1 1/2") Product ID: ORI0400450 Brand: 2025-01-21 From: $8.51 AUD View or buy the Poly Riser Poly Fittings - 6b. Poly Riser 40mm x 450mm (1 1/2") from to discover other options and shipping details. Description Back to Poly Fittings - Poly Riser More Poly Riser and others in our range 4a. Poly Riser 25mm x 100mm (1") 3c. Poly Riser 20mm x 200mm (3/4") 3g. Poly Riser 20mm x 1000mm (3/4") Poly All Thread Riser 25 mm x 300 mm 2f. Poly Riser 15mm x 300mm (1/2") 4c. Poly Riser 25mm x 300mm (1") Poly Cut Off Riser 20mm x 300mm (3 by 4") 1a. Poly Cut Off Riser 15mm x 150mm 3d. Poly Riser 20mm x 300mm (3/4") 5a. Poly Riser 32mm x 150mm (1 1/4")