► RELN

Drainage, Pits & Grates That Keep Sites Safe Water left to pool on site is more than a nuisance — it’s a safety & compliance issue. Slippery walkways, soft ground & flooding can slow work, damage finished surfaces & create hazards for workers & machinery. RELN provides lightweight, high-strength drainage...

Drainage, Pits & Grates That Keep Sites Safe

Water left to pool on site is more than a nuisance — it’s a safety & compliance issue. Slippery walkways, soft ground & flooding can slow work, damage finished surfaces & create hazards for workers & machinery. RELN provides lightweight, high-strength drainage systems engineered for construction, landscaping & residential applications across Australia.

RELN pits, channels & grates are designed for quick, efficient installation without compromising durability. These systems are easy to transport, fit together smoothly & stand up to heavy vehicle & machinery loads once in place. Builders, landscapers & contractors rely on RELN to manage stormwater & surface runoff while staying compliant with Australian standards.

At Industrial Shed, RELN products are available in bulk supply, contractor-ready packs, & trade volumes, making it simple to source the right components for projects of any size. Combine RELN drainage systems with Building & Construction Supplies, Workshop Equipment & Safety & Crowd Control Barriers & Signage to ensure a complete site setup, all with same-day dispatch & competitive trade pricing.

What’s in This Collection:

► RELN | Aluminium Grates
 ‣ Lightweight, corrosion-resistant grates for long-lasting performance

► RELN | Architectural Grates
‣ Stylish solutions for premium landscaping & commercial projects

► RELN | Channel Drains & Pit Base
 ‣ Modular systems for pathways, driveways & landscaped areas

► RELN | Drainage & Pits
 ‣ Heavy-duty, lightweight drainage solutions for construction & landscaping

► RELN | Drain Accessories
‣ End caps, joiners, plugs & guards to complete installations

► RELN | Galvanised & Iron Grates
 ‣ Strong, durable grates designed to handle heavy traffic & machinery

► RELN | Heelguard & Stainless Steel Grates
‣ Safety-focused grates with anti-slip designs for compliance

► RELN | Pumps & Valves
 ‣ Essential flow management for stormwater & pit systems

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  • RELN - 3200L Septic Tank undrilled base, reinforcing ring,riser,lid,access pack, Manhole Cover & Lid | 000845
    RELN - 3200L Septic Tank undrilled base, reinforcing ring,riser,lid,access pack, Manhole Cover & Lid | 000845
    RELN 3200L Deep Invert Septic Tank Undrilled Base Complete with Reinforcing Ring, Riser, Lid, Accessory Pack, Manhole Cover and Lid | 000845 The RELN 3200L Deep Invert Septic Tank is a complete wastewater treatment solution designed for residential, rural, and commercial applications requiring additional...
    $3,624.20
    $3,624.20
  • RELN - Holding Tank - 4000L Complete no holes,undrilled base,reinforcing ring,riser,manhole,lid,access pack no outlet | 000842
    RELN - Holding Tank - 4000L Complete no holes,undrilled base,reinforcing ring,riser,manhole,lid,access pack no outlet | 000842
    RELN Holding Tank 4000L Complete No Holes, Drill Base, Reinforcing Ring, Riser, Manhole, Lid, Accessory Pack and No Outlet | 000842 The RELN 4000L Holding Tank is a heavy-duty wastewater storage solution designed for residential, rural, and commercial applications where effluent requires collection and...
    $4,690.00
    $4,690.00
  • RELN - Holding Tank - 3200L Undrilled Base,Lid,Manhole,access pack no outlet | 000790
    RELN - Holding Tank - 3200L Undrilled Base,Lid,Manhole,access pack no outlet | 000790
    RELN Holding Tank 3200L Undrilled Base, Lid, Manhole, Accessory Pack with No Outlet | 000790 The RELN 3200L Holding Tank is a heavy-duty wastewater storage solution designed for residential, rural, and commercial applications where effluent requires collection and pump-out disposal. Built tough for Australian...
    $3,113.80
    $3,113.80
  • RELN - Holding Tank - 3200L Undrilled Base,Lid,Manhole,access pack | 000791
    RELN - Holding Tank - 3200L Undrilled Base,Lid,Manhole,access pack | 000791
    RELN Holding Tank 3200L Undrilled Base, Lid, Manhole and Accessory Pack | 000789 The RELN 3200L Holding Tank is a heavy-duty wastewater storage solution designed for residential, rural, and commercial applications where reliable effluent containment is required. Built tough for Australian conditions, this complete...
    $2,586.60
    $2,586.60
  • RELN - Septic Tank - 4000L Baffle, undrilled base,reinforcing ring, riser, lid, access pack & injected Moulded baffle | 000840
    RELN - Septic Tank - 4000L Baffle, undrilled base,reinforcing ring, riser, lid, access pack & injected Moulded baffle | 000840
    RELN Septic Tank 4000L Complete Undrilled Base, Reinforcing Ring, Riser, Lid, Accessory Pack and Injected Moulded Baffle | 000840 The RELN 4000L Septic Tank is a complete wastewater treatment solution designed for residential, rural, and commercial applications requiring reliable onsite sewage management. Built tough...
    $5,233.20
    $5,233.20
  • RELN - Septic Tank - 4000L No Baffle, undrilled base,reinforcing ring, riser, lid & Access Pack | 000841
    RELN - Septic Tank - 4000L No Baffle, undrilled base,reinforcing ring, riser, lid & Access Pack | 000841
    RELN Septic Tank 4000L No Baffle, Undrilled Base, Reinforcing Ring, Riser, Lid and Access Pack | 000841 The RELN 4000L Septic Tank is a heavy-duty wastewater treatment solution designed for residential, rural, and commercial applications requiring reliable onsite sewage management. This complete configuration includes...
    $4,729.20
    $4,729.20
  • RELN - Septic Tank -3200L Undrilled Base Only | 000709
    RELN - Septic Tank -3200L Undrilled Base Only | 000709
    RELN Septic Tank 3700L No Drill Holes Base Only | 000709 The RELN 3700L Septic Tank Base Only is a heavy-duty onsite wastewater treatment solution designed for residential, rural, and commercial applications requiring reliable sewage management. This undrilled base-only configuration offers maximum installation flexibility,...
    $1,641.60
    $1,641.60
  • RELN - Septic Tank -3200L Drilled Base Only | 000992
    RELN - Septic Tank -3200L Drilled Base Only | 000992
    RELN Septic Tank 3200L Drilled Base Only | 000992 The RELN 3200L Septic Tank Drilled Base Only is a heavy-duty onsite wastewater treatment solution designed for residential, rural, and commercial applications requiring reliable sewage management. This drilled base-only configuration is ideal for replacement installations,...
    $1,641.60
    $1,641.60
  • RELN - Septic Tank 3200L With Baffle | 000780c
    RELN - Septic Tank 3200L With Baffle | 000780c
    RELN Septic Tank 3200L Complete with Drilled Base, Lid, Manhole, Accessory and Injected Moulded Baffle | 000780C The RELN 3200L Septic Tank with Baffle is a complete onsite wastewater treatment solution designed for residential, rural, and commercial applications requiring reliable sewage management. Supplied complete...
    $3,850.20
    $3,850.20
  • RELN - Septic Tank 3200L No Baffle | 000780S
    RELN - Septic Tank 3200L No Baffle | 000780S
    RELN Septic Tank 3200L Standard Pack No Baffle, Drilled Base, Lid, Manhole and Accessory | 000780S The RELN 3200L Standard Pack Septic Tank is a complete onsite wastewater treatment solution designed for residential, rural, and commercial applications requiring reliable sewage management. Supplied with a...
    $3,326.20
    $3,326.20
  • RELN - Stretch Drain Bottom Outlet Adaptor | 000533
    RELN - Stretch Drain Bottom Outlet Adaptor | 000533
    RELN Stretch Drain Bottom Outlet Adaptor | 000533 The RELN Stretch Drain Bottom Outlet Adaptor is designed to connect RELN 90mm surfacewater drainage outlets and Uni-Pits directly to RELN 100mm Stretch Ag-Pipe systems. Built for fast and flexible drainage installations, this adaptor provides a...
    $7.10
    $7.10
  • RELN - Stretch Drain 65mm Tee Pieces | 000557
    RELN - Stretch Drain 65mm Tee Pieces | 000557
    RELN Stretch Ag-Pipe 65mm Tee Piece | 000557 The RELN Stretch Ag-Pipe 65mm Tee Piece is designed to connect multiple RELN Stretch Ag-Pipe drainage lines together, making it easy to split or redirect groundwater flow in residential and landscaping drainage systems. Built for quick...
    $17.40
    $17.40
  • RELN - Stretch Drain 65mm End Cap | 000556
    RELN - Stretch Drain 65mm End Cap | 000556
    RELN Stretch Ag-Pipe 65mm End Cap | 000556 The RELN Stretch Ag-Pipe 65mm End Cap is designed to securely seal the open end of RELN 65mm Stretch Ag-Pipe systems. Featuring a simple twist-and-seal threaded design, this lightweight drainage fitting helps maintain efficient groundwater flow...
    $14.10
    $14.10
  • RELN - Stretch Drain 65mm 7m Solid | 000566
    RELN - Stretch Drain 65mm 7m Solid | 000566
    RELN Stretch Drain 65mm 7m Solid | 000566 The RELN Stretch Drain 65mm 7m Solid is a flexible groundwater drainage solution designed for diverting water from one point to another in residential and landscaping applications. Unlike traditional corrugated pipe, Stretch Drain bends easily around...
    $49.50
    $49.50
  • RELN - Stretch Drain 65mm 7m Slotted with Sock | 000567
    RELN - Stretch Drain 65mm 7m Slotted with Sock | 000567
    RELN Stretch Ag-Pipe 65mm 7m Filtersock | 000565 The RELN Stretch Ag-Pipe 65mm 7m Filtersock is a flexible slotted drainage pipe designed for groundwater collection and subsurface drainage applications. Wrapped in a durable geotextile filtersock, this pipe helps prevent sediment and fine particles entering...
    $53.30
    $53.30
  • RELN - Stretch Drain 100mm Downpipe Adaptor 100 x 50 | 000505
    RELN - Stretch Drain 100mm Downpipe Adaptor 100 x 50 | 000505
    RELN Stretch Ag-Pipe 100mm Downpipe Adaptor 100 x 50 | 000505 The RELN Stretch Ag-Pipe 100mm Downpipe Adaptor is designed to connect gutter downpipes directly to RELN Stretch Ag-Pipe drainage systems. Engineered for fast and versatile installation, this adaptor suits 90mm PVC downpipes along...
    $19.80
    $19.80
  • RELN - Stretch Drain 100mm Channel Coupling | 000510
    RELN - Stretch Drain 100mm Channel Coupling | 000510
    RELN Stretch Ag-Pipe 100mm Drainage Channel Coupling | 000510 The RELN Stretch Ag-Pipe 100mm Drainage Channel Coupling is designed to connect RELN 100mm Stretch Ag-Pipe systems directly to RELN surfacewater drainage system 90mm outlets. Engineered for fast and flexible installation, this coupling helps simplify...
    $121.54
    $109.20
    $121.54
  • RELN - Stretch Drain 100mm Tee Piece | 000506
    RELN - Stretch Drain 100mm Tee Piece | 000506
    RELN Stretch Ag-Pipe 100mm Tee Piece | 000506 The RELN Stretch Ag-Pipe 100mm Tee Piece is designed to connect multiple RELN Stretch Ag-Pipe drainage lines together, making it easy to split or redirect groundwater flow in residential, landscaping, and stormwater drainage systems. Engineered for...
    $17.20
    $17.20
  • RELN - Stretch Drain 100mm - End Cap | 000509
    RELN - Stretch Drain 100mm - End Cap | 000509
    RELN Stretch Drain 100mm End Cap | 000509 The RELN Stretch Drain 100mm End Cap is designed to securely seal the open end of RELN 100mm Stretch Drain and Ag-Pipe systems. Featuring a simple twist-and-seal threaded design, this lightweight drainage fitting helps maintain efficient...
    $9.00
    $9.00
  • RELN - Stetch Drain 100mm - 8m Slotted with Sock | 000501
    RELN - Stetch Drain 100mm - 8m Slotted with Sock | 000501
    RELN Stretch Drain 100mm 8m Slotted with Sock | 000501 The RELN Stretch Drain 100mm 8m Slotted Pipe with Sock is a flexible groundwater drainage solution designed for efficient subsurface water collection in landscaping, retaining wall, and stormwater drainage applications. Wrapped in a durable...
    $76.60
    $76.60

Drainage That Works Long After Construction Ends

Proper drainage isn’t just about finishing the job — it’s about protecting the site for years to come. RELN pits, channels & grates are engineered to withstand stormwater surges, heavy loads & tough Australian conditions without failing.

Landscapers & builders trust RELN to hand over projects that last, reducing costly call-backs & avoiding compliance issues. From rural farms to industrial complexes, RELN drainage systems keep sites functional, safe & compliant well beyond project completion.

Industrial Shed supports every order with same-day dispatch, bulk pack options & the Industrial Shed Trade Guarantee. Whether you need a few components for a residential project or a large volume for commercial drainage works, RELN gear is ready to keep your site moving forward.

► Australian-proven drainage systems for builders & landscapers
► Quick to install, strong enough for heavy traffic
► Contractor packs & bulk supply options available
► Backed by Industrial Shed’s Trade Guarantee

Frequently Asked Questions

Yes. Many RELN products are engineered to withstand vehicles, machinery & high-flow conditions.

They are ideal for driveways, landscaping, commercial sites & residential builds.

Absolutely. Industrial Shed offers bulk supply & trade volumes with same-day dispatch.