Product CatalogueStormwater SuppliesPoly FittingsPoly Riser4d. Poly Riser 25mm x 450mm (1") Back 4d. Poly Riser 25mm x 450mm (1") Product ID: ORI0250500 Brand: 2026-10-18 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 2f. Poly Riser 15mm x 300mm (1/2") 7d. Poly Riser 50mm x 1200mm (2") 2i. Poly Riser 15mm x 750mm (1/2") 2d.i. Poly Riser 15mm x 225mm (0.5") 2k. Poly Riser 15mm x 1500mm (1/2") Poly All Thread Riser 20 mm x 300 mm Poly Riser 15mm x 900mm (1/2") 2d. Poly Riser 15mm x 200mm (0.5") **LIMITED STOCK** 6a. Poly Riser 40mm x 150mm (1 1/2") 5b. Poly Riser 32mm x 450mm (1 1/4")