Product CatalogueStormwater SuppliesPoly FittingsPoly Riser4d. Poly Riser 25mm x 450mm (1") Back 4d. Poly Riser 25mm x 450mm (1") Product ID: ORI0250500 Brand: 2025-05-25 From: $3.85 AUD View or buy the Poly Riser Poly Fittings - 4d. Poly Riser 25mm x 450mm (1") from to discover other options and shipping details. Description Back to Poly Fittings - Poly Riser More Poly Riser and others in our range 7c. Poly Riser 50mm x 900mm (2") 3f. Poly Riser 20mm x 750mm (0.75") 5b. Poly Riser 32mm x 450mm (1 1/4") ~10d. Poly Riser Continuous Thread 20mm x 150mm (3/4") Poly Cut Off Riser 20mm x 300mm (3 by 4") 3e. Poly Riser 20mm x 500mm (3/4") 4d. Poly Riser 25mm x 450mm (1") 4e. Poly Riser 25mm x 900mm (1") 6c. Poly Riser 40mm x 900mm (1 1|2") 2b. Poly Riser 15mm x 100mm (1/2")