Product CatalogueStormwater SuppliesPoly FittingsPoly Riser4d. Poly Riser 25mm x 450mm (1") Back 4d. Poly Riser 25mm x 450mm (1") Product ID: ORI0250500 Brand: 2026-03-06 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 3b. Poly Riser 20mm x 100mm (3/4") Poly Riser Continuous Thread 15mm x 150mm (1 by 2") Poly All Thread Riser 25 mm x 300 mm 4b. Poly Riser 25mm x 200mm (1") 3d. Poly Riser 20mm x 300mm (3/4") 4f. Poly Riser 25mm x 1200mm (1") 7b. Poly Riser 50mm x 450mm (2") 5a. Poly Riser 32mm x 150mm (1 1/4") 2i. Poly Riser 15mm x 750mm (1/2") 6b. Poly Riser 40mm x 450mm (1 1/2")