Product CatalogueStormwater SuppliesPoly FittingsPoly RiserPoly All Thread Riser 20 mm x 300 mm Back Poly All Thread Riser 20 mm x 300 mm Product ID: ORTH20300 Brand: 2026-12-04 From: $3.12 AUD View or buy the Poly Riser Poly Fittings - Poly All Thread Riser 20 mm x 300 mm from to discover other options and shipping details. Description Poly All Thread Riser 20 mm x 300 mm Back to Poly Fittings - Poly Riser More Poly Riser and others in our range 7b. Poly Riser 50mm x 450mm (2") 7a. Poly Riser 50mm x 150mm (2") 2f. Poly Riser 15mm x 300mm (1/2") 4b. Poly Riser 25mm x 200mm (1") 6a. Poly Riser 40mm x 150mm (1 1/2") 3e. Poly Riser 20mm x 500mm (3/4") ~10b. Poly Riser Continuous Thread 15mm x 300mm (1/2") 2d.i. Poly Riser 15mm x 225mm (0.5") ~10d. Poly Riser Continuous Thread 20mm x 150mm (3/4") 7d. Poly Riser 50mm x 1200mm (2")