Product CatalogueStormwater SuppliesPoly FittingsPoly Riser4d. Poly Riser 25mm x 450mm (1") Back 4d. Poly Riser 25mm x 450mm (1") Product ID: ORI0250500 Brand: 2026-01-18 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") 3f. Poly Riser 20mm x 600mm (3/4") 2a. Poly Riser 15mm x 50mm (1/2") 2i. Poly Riser 15mm x 750mm (1/2") 6c. Poly Riser 40mm x 900mm (1 1|2") 5c. Poly Riser 32mm x 900mm (1 1|4") 4d. Poly Riser 25mm x 450mm (1") 6b. Poly Riser 40mm x 450mm (1 1/2") Poly All Thread Riser 20 mm x 300 mm 3d. Poly Riser 20mm x 300mm (3/4")