Product CatalogueStormwater SuppliesPoly FittingsPoly Riser4d. Poly Riser 25mm x 450mm (1") Back 4d. Poly Riser 25mm x 450mm (1") Product ID: ORI0250500 Brand: 2026-09-02 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 4c. Poly Riser 25mm x 300mm (1") ~11b. Poly Riser Swing Joint Hunter 1/2" x 30cm ~11a. Poly Riser Swing Joint Hunter 1/2" x 15cm 5c. Poly Riser 32mm x 900mm (1 1|4") 4a. Poly Riser 25mm x 100mm (1") 3f. Poly Riser 20mm x 750mm (0.75") Poly All Thread Riser 25 mm x 300 mm Poly Cut Off Riser 20mm x 300mm (3 by 4") Poly Riser Articulated 15mm x 225mm (0.5in) 3d. Poly Riser 20mm x 300mm (3/4")