Drainage
Keep water flowing where it should with our range of drainage solutions including stormwater pipe, agi drain coil, drainage scoria, pits and grates. Perfect for landscapers, builders, plumbers & DIYers, our products help manage excess water, protect structures, and improve garden health.
Available with delivery across Eltham and Melbourne’s north-east.
Sort by:
21 products
21 products
Lightweight volcanic stone | Ideal for drainage & garden beds | Naturally porous
20mm Scoria Rock is a lightweight, porous volcanic stone perfect for improving drainage in garden beds, behind retaining walls, and around soak wells or agi pipe. It's porous texture also lends it to use as a reservoir for self-watering pots or even as a grow medium for some plants.
Scoria’s excellent drainage properties help prevent waterlogging and root rot—making it an essential material for healthy gardens in clay-prone or wet soil areas.
Ideal for:
- Garden bed drainage and soil aeration
- Filling behind retaining walls or subsoil piping
- As a grow medium for suitable species in a self-watering setup.
Key Features:
✅ 20mm size – versatile and easy to handle
✅ Excellent drainage and water flow control
✅ Lightweight yet durable volcanic stone
✅ Natural earthy colour for landscaping appeal
Available in bulk or by the cubic metre for pickup or local delivery across Eltham, Research, Diamond Creek, and surrounding suburbs.
Strong & versatile | Excellent drainage | Ideal base material
Our 20mm Aggregate is a coarse, clean stone blend suitable for a range of construction and landscaping applications. Its larger particle size makes it ideal as a sub-base material for concrete slabs, driveways, paths, and drainage systems, where strength and flow-through capacity are essential.
Because the stones are relatively large, this aggregate permits water to pass through, reducing pooling and helping maintain stability under structural loads. It’s commonly used around pipe bedding, retaining wall backfill, and civil works projects.
Ideal for:
- Drainage and pipe bedding
- Backfill for retaining walls
- Structural and landscaping foundations
- Aggregate for concrete mix
Key Features:
✅ Coarse 20mm stone size for strength and stability
✅ Excellent drainage capacity — reduces waterlogging
✅ Suitable for load-bearing and civil applications
✅ Clean, screened material ready for use
Available in bulk or by the cubic metre for pickup or local delivery across Eltham, Research, Diamond Creek, and surrounding suburbs.
Precision-moulded PVC | Smooth water flow | Range of bend angles for every layout
Our 90 mm Stormwater PVC Bends are designed to provide smooth directional changes in stormwater systems. Available in 15°, 22°, 45° and 90° variants, these fittings allow for flexible pipe routing around obstacles, garden edges, retaining walls, and underground structures — ensuring optimal flow and minimal turbulence throughout your drainage network.
Manufactured from high-quality PVC-U and built to AS/NZS 1254 standards, these bends are strong, lightweight, and resistant to corrosion and impact. Each bend features a female-to-female slip socket for quick installation with solvent cement, ensuring watertight performance for years to come.
Ideal for:
- Changing direction of 90 mm stormwater pipe runs
- Residential and light-commercial drainage systems
- Retrofitting or upgrading existing underground networks
- Above-ground or below-ground installation
Key Features:
✅ Available in 15°, 22°, 45° and 90° angles to suit every application
✅ Smooth internal bore design reduces friction and blockage risk
✅ Durable PVC-U construction – lightweight, corrosion-resistant and long-lasting
✅ Compatible with standard 90 mm stormwater fittings and pipe systems
✅ Complies with AS/NZS 1254 for stormwater and drainage use
Available in-store or via local delivery across Eltham, Research, Diamond Creek, and nearby suburbs.
Subsurface drainage solution | Efficient water intake | Durable PVC-U construction
Our 90mm Slotted Stormwater Pipe is engineered for applications where efficient water entry and removal are key—such as under driveways, garden beds, retention areas or low spots prone to pooling. The slotted wall allows water to flow into the pipe evenly along its length, while the smooth bore provides reliable conveyance away from the site.
Manufactured to comply with AS/NZS 1254 for stormwater and surface water use, and available in 6 m lengths for quick installation. Choose this pipe when you need a professional-grade solution to manage groundwater, subsurface seepage or drainage behind retaining walls.
Ideal for:
- Sub-surface drainage beneath paved areas, driveways or patios
- Garden beds and native landscapes with low spots or poor drainage
- Retaining wall back-fill zones where water needs to be drawn away
- Residential and light commercial landscapes requiring reliable drainage
Key Features:
✅ Slotted wall design allows water entry along full pipe length, reducing localised build-up.
✅ Made from durable PVC-U — corrosion-resistant, long-life and easy to connect.
✅ Compliant with AS/NZS 1254 to ensure standard-rated installation quality.
✅ Long 6 m lengths minimise joints and simplify installation in hard-to-reach areas.
Available for in-store pickup or via local delivery across Eltham, Research, Diamond Creek and surrounding suburbs.
Lightweight volcanic stone | Ideal for drainage & garden beds | Naturally porous
20mm Scoria Rock is a lightweight, porous volcanic stone perfect for improving drainage in garden beds, behind retaining walls, and around soak wells or agi pipe. It's porous texture also lends it to use as a reservoir for self-watering pots or even as a grow medium for some plants.
Scoria’s excellent drainage properties help prevent waterlogging and root rot—making it an essential material for healthy gardens in clay-prone or wet soil areas.
Ideal for:
- Garden bed drainage and soil aeration
- Filling behind retaining walls or subsoil piping
- As a grow medium for suitable species in a self-watering setup.
Key Features:
✅ 20mm size – versatile and easy to handle
✅ Excellent drainage and water flow control
✅ Lightweight yet durable volcanic stone
✅ Natural earthy colour for landscaping appeal
Available in bulk or by the cubic metre for pickup or local delivery across Eltham, Research, Diamond Creek, and surrounding suburbs.
Standard drainage size | SN6 stiffness rating | Long-length for fewer joints
This 100mm PVC-U DWV (Drain, Waste & Vent) pipe is supplied in a full 6-metre length and is rated SN6 for general purpose underground drainage use. Highly suitable for residential stormwater, grey-water or drainage applications under slabs and gardens - it meets Australian drainage standards and offers reliable performance.
Ideal for new installations or upgrades in both landscaped and structural settings, the 100 mm DWV pipe gives you a robust, easy-to-joint solution that reduces labour and parts by minimising pipe breaks.
Ideal for:
- Subsurface drainage runs beneath paving, driveways or gardens
- Connecting gutter down-pipes to stormwater outlets or retention systems
- Residential drainage systems for garden beds, patios & low spots
- New builds and renovation works requiring compliant drainage pipe
Key Features:
✅ 100 mm nominal diameter - standard size for drainage pipes
✅ 6-metre length - fewer joints, quicker install
✅ SN6 wall stiffness - suitable for general underground applications
✅ PVC-U construction - durable, corrosion-resistant and efficient to install
Available for in-store pickup or local delivery across Eltham, Research, Diamond Creek and surrounding suburbs.
Smooth branch connection | Robotic-grade PVC-U | Reliable stormwater routing
The 90 mm Stormwater Y Junction 45° is a Y-shaped chamber designed to smoothly divert stormwater pipes at a 45° angle, helping your drainage layout remain efficient and clean-flowing. Manufactured in rigid PVC-U and compliant with Australian standards for stormwater systems.
Whether you’re splitting a 90 mm trunk pipe to two exits, creating a bypass or forming a tidy junction beneath paved or landscaped areas, this fitting offers a practical, durable solution for both new builds and retrofit jobs.
Ideal for:
- Branching 90 mm stormwater runs into secondary lines
- Drainage under driveways, paths and paved gardens
- Residential and light commercial stormwater drainage systems
- Replacement or upgrade of existing down-pipe junctions
Key Features:
✅ Female-to-female slip sockets for straight insertion and solvent-cement installation.
✅ Rigid PVC-U construction — durable, impact-resistant and long-lasting.
✅ 45° branch angle provides smooth flow, reduces turbulence and blockages.
✅ Suitable for above-ground and below-ground installations and compliant with AS/NZS 1254 standard (where applicable).
Available for in-store pickup or local delivery across Eltham, Research, Diamond Creek and surrounding suburbs.
Reliable drainage pipe | Full-length 6 m sections | AS/NZS 1254 compliant
Our 90 mm Stormwater Pipe is a trusted drainage solution for residential and commercial use. Available in full 6 metre lengths, this pipe is ideal for conveying rainwater and groundwater efficiently from downpipes, roof gutters, or low lying areas. The pipe is manufactured from uPVC and conforms to the Australian/New Zealand standard AS 1254.
With its durable material and strong performance, this stormwater pipe is suitable for installations under driveways, around retaining walls, and as part of rainwater harvesting systems—making it a versatile choice for landscaping and building drain runs.
Ideal for:
- Stormwater drainage from roofs, gutters and overflow systems
- Rainwater tank plumbing or stormwater runoff management
- Subsurface drainage runs beneath patios, driveways or garden beds
- New builds or renovation projects requiring compliant pipework
Key Features:
✅ 90 mm diameter for standard stormwater flows
✅ Full 6 metre length reduces joins and simplifies installation
✅ Manufactured from PVC-U, compliant with AS/NZS 1254 for stormwater use
✅ Suitable for both above-ground and below-ground installations in residential landscapes
Available for in-store pickup or local delivery across Eltham, Research, Diamond Creek and surrounding suburbs.
Secure termination | Durable PVC-U | Compliant for stormwater systems
The 90 mm Stormwater Push-On Cap provides a reliable and simple solution to seal the end of a 90 mm PVC stormwater drainage pipe. Designed to fit snugly over the pipe’s exterior (or, in dual-use versions, inside a socket as a plug), it ensures a watertight end-point for stormwater or downpipe systems.
Constructed from rigid PVC-U and built to comply with AS/NZS 1254 standard, this cap is suitable for both above-ground and below-ground applications, providing long-term durability, chemical resistance, and easy installation.
Ideal for:
- Terminating the end of a 90 mm stormwater pipe run
- Rainwater harvesting or downpipe drainage systems
- Residential or light commercial stormwater setups
- Repair or upgrade where an existing pipe end needs sealing
Key Features:
✅ Push-on design allows quick installation over the pipe end or into a socket.
✅ Made from durable PVC-U resistant to corrosion, UV and buried conditions.
✅ Complies with AS/NZS 1254, suitable for stormwater drainage use.
✅ Light-weight, easy to handle and install—ideal for DIY or trade use.
Available for in-store pickup or local delivery across Eltham, Research, Diamond Creek and surrounding suburbs.
Strong & versatile | Excellent drainage | Ideal base material
Our 20mm Aggregate is a coarse, clean stone blend suitable for a range of construction and landscaping applications. Its larger particle size makes it ideal as a sub-base material for concrete slabs, driveways, paths, and drainage systems, where strength and flow-through capacity are essential.
Because the stones are relatively large, this aggregate permits water to pass through, reducing pooling and helping maintain stability under structural loads. It’s commonly used around pipe bedding, retaining wall backfill, and civil works projects.
Ideal for:
- Drainage and pipe bedding
- Backfill for retaining walls
- Structural and landscaping foundations
- Aggregate for concrete mix
Key Features:
✅ Coarse 20mm stone size for strength and stability
✅ Excellent drainage capacity — reduces waterlogging
✅ Suitable for load-bearing and civil applications
✅ Clean, screened material ready for use
Available in bulk or by the cubic metre for pickup or local delivery across Eltham, Research, Diamond Creek, and surrounding suburbs.
Efficient flow split | Durable PVC-U construction | Trusted for stormwater systems
This 90 mm Stormwater Tee Junction (90°) is designed for splitting or joining drainage lines seamlessly—ideal for diverting water flow, creating bypasses or branching a main stormwater run into secondary pipes. Built from heavy-duty PVC-U and designed for solvent-cement installation, it meets inspection standards and ensures long-term performance.
Ideal for:
- Splitting a 90 mm stormwater trunk line into two runs
- Branching drainage under driveways, paved areas or garden beds
- Residential or light-commercial stormwater drainage systems
- Upgrading or repairing existing down-pipe and drainage junctions
Key Features:
✅ Female-to-female socket design for secure solvent-welded connections.
✅ Rigid PVC-U construction rated for stormwater use and compliant with AS/NZS 1254.
✅ 90° angle junction offering smooth flow and reliable drainage performance.
✅ Suitable for above-ground or below-ground applications, making it versatile and service-friendly.
Available in-store for pickup or with local delivery across Eltham, Research, Diamond Creek, and surrounding suburbs.
Effortless pipe joining | Durable PVC-U construction | Reliable stormwater flow
This 90 mm Stormwater Straight Coupling (Slip Socket) is engineered for joining two sections of PVC-U stormwater pipe with ease and precision. The slip-fit (female-female) design allows for simple alignment before solvent-cementing, making installation faster—especially in restricted spaces.
Manufactured to comply with the Australian/New Zealand standard AS/NZS 1254 for stormwater drainage fittings, this coupling ensures a consistent, watertight connection in down-pipes, drainage systems and outdoor water-management projects.
Ideal for:
- Joining or extending 90 mm stormwater drainage runs
- Repairs beneath driveways, paved areas or slab footings
- Residential or light-commercial stormwater systems
- Downpipe or surface drainage connections
Key Features:
✅ Female-to-female slip design for easy installation and alignment.
✅ PVC-U material offering corrosion resistance and long lifespan.
✅ Compliant with AS/NZS 1254 for stormwater applications.
✅ Suitable for straight-run connections and repairs, minimizing downtime and labour.
Available now for in-store pickup or local delivery across Eltham, Research, Diamond Creek and surrounding suburbs.
FEATURED PRODUCTS
WE THINK YOU WILL LOVE
Related blog posts
