Product CatalogueStormwater SuppliesPoly FittingsPoly Riser4d. Poly Riser 25mm x 450mm (1") Back 4d. Poly Riser 25mm x 450mm (1") Product ID: ORI0250500 Brand: 2025-05-24 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 Poly Riser 25 mm x 2400 mm 3a. Poly Riser 20mm x 50mm (3/4") 2c. Poly Riser 15mm x 150mm (1/2") 4d. Poly Riser 25mm x 450mm (1") 7a. Poly Riser 50mm x 150mm (2") Poly Riser 15mm x 900mm (1/2") 2b. Poly Riser 15mm x 100mm (1/2") 3d. Poly Riser 20mm x 300mm (3/4") 3b. Poly Riser 20mm x 100mm (3/4") Poly All Thread Riser 20 mm x 300 mm