Product CatalogueStormwater SuppliesPoly FittingsPoly Riser4d. Poly Riser 25mm x 450mm (1") Back 4d. Poly Riser 25mm x 450mm (1") Product ID: ORI0250500 Brand: 2025-06-01 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 ~10d. Poly Riser Continuous Thread 20mm x 150mm (3/4") 3g. Poly Riser 20mm x 1000mm (3/4") Poly Riser Continuous Thread 15mm x 150mm (1 by 2") 3e. Poly Riser 20mm x 500mm (3/4") Poly Riser 15mm x 900mm (1/2") Poly Cut Off Riser 20mm x 300mm (3 by 4") 2b. Poly Riser 15mm x 100mm (1/2") ~10b. Poly Riser Continuous Thread 15mm x 300mm (1/2") Poly All Thread Riser 20 mm x 300 mm 4b. Poly Riser 25mm x 200mm (1")