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For indoor and outdoor drainage applications requiring a low-profile, high-capacity drainage system, the Midnight Black NeXT Generation 21 NXT21 Linear Drain Kit provides a 21mm deep, 100mm wide anodised aluminium profile. This WaterMark certified system features an anti-water tracking design and an easy roll-out top grate that simplifies routine maintenance and cleaning access.
High-capacity flow and mechanical performance
The NXT21 linear drain is manufactured from UV-stable, rustproof anodised aluminium. It is designed to handle light vehicular and heavy pedestrian traffic, making it suitable for both domestic and commercial installations. Because the system utilizes customizable, on-site drilling for waste outlets and offers dedicated joiners for extended runs, installers can configure the drain to match specific site layouts and flow requirements.
Numbers that matter
- 21mm depth: Low-profile vertical clearance suitable for shallow screed or outdoor paving installations where slab depth is limited.
- Class B load rating: Rated for a maximum load of 10.2 tons, accommodating light vehicular traffic and heavy pedestrian loads in driveways, pathways, and patios.
- Multiple waste sizes (DN90, 40mm, 50mm, 72mm, and 80mm): Full compatibility with standard residential and commercial drainage pipes, cut on-site to match exact plumbing layouts.
- 3.0m and 5.6m raw-length allowances: Raw lengths of 3.2m and 5.8m are supplied to yield 3.0m and 5.6m of usable anodised grate, allowing the installer to cut away any end-wastage caused by the manufacturing process.
Installation and cutting requirements
To ensure a precise fit and protect the lifetime rustproof warranty, installation must be completed by a licensed plumber in accordance with AS/NZS 3500.2. Follow these specific cutting and assembly tolerances on-site:
- Cutting the tray: Use a compound mitre saw fitted with a multi-material cutting blade (80 teeth or more). Cut the bottom tray exactly 3mm shorter than the finished opening to leave space for the end caps.
- Cutting the grate: Cut the top grate 1mm shorter than the bottom tray to ensure the roll-out top can be easily removed for maintenance.
- Drilling waste outlets: Drill the opening in the bottom tray at the required position using a Lauxes TCT hole saw matching your pop waste size.
- Sealing joints: Apply a continuous bead of silicone around the outside of the tray joints when fitting the end caps, and run a bead of silicone around the lip of the pop waste outlet before securing it to the underside of the tray.
Limitations
- Cement and adhesive contact: Wet cement-based products (including wet concrete, screeds, and tile adhesives) will damage the anodised aluminium finish. Use a template or protective barrier during installation to prevent direct contact.
- Chemical restrictions: Do not clean the anodised grates with acidic chemicals, abrasive cloths, or scouring pads, as these will permanently compromise the surface finish. Use soapy water only.
Frequently Asked Questions About Midnight Black NeXT Generation 21 (NXT21)
Q: Can the NXT21 be used on balconies or outdoor patios?
A: Yes, it’s fully UV stable and rustproof, making it ideal for any outdoor applications including balconies, alfresco areas, and even pool surrounds.
Q: How do I clean the grate?
A: The roll-out feature allows for easy access to internal drainage. Simply roll the grate up and clean with a soft brush and hose.
Q: Can it be cut on-site?
A: Absolutely. It is designed for easy onsite cutting using a drop saw or hacksaw. Always deburr edges after cutting.
Q: Will it rust over time in coastal areas?
A: No. It carries a Lifetime Rustproof Warranty and is manufactured from anodised aluminium, ideal for salt air environments.
Use Midnight Black NeXT Generation 21 (NXT21) for:
- Indoor linear shower drains
- Outdoor patios and pool edges
- Balcony drainage
- Commercial bathrooms and wet zones
Why Use NeXT Generation 21 (NXT21):
- Rust-free for life – ideal for high-moisture zones
- 25-year fade warranty – great for exposed installations
- Faster onsite adjustments – cut, connect and drain with ease
How to apply Midnight Black NeXT Generation 21 (NXT21):
- Measure and cut the grate to length using a drop saw. Deburr edges for safety and aesthetics.
- Set the tray in place over waterproofed substrate. Ensure even support along the length.
- Position waste outlet anywhere along the tray and connect to compatible drainage.
- Install grate cover by rolling in place. Adjust finish height to align with tile or floor level.
- Clean with soft cloth after installation to remove residue or debris.
Midnight Black NeXT Generation 21 (NXT21) limitations:
- Minimum installation depth is 21mm – unsuitable for ultra-slimline floor designs
- May require tray packing for uneven screeds – always check with a level before installation
Safety precautions when using NeXT Generation 21 (NXT21):
- Personal Protective Equipment: Gloves, safety glasses when cutting aluminium
- Ventilation: Not required for product, but adhesive use may require ventilation
- Handling: Handle with care when cut to avoid sharp aluminium edges
- First Aid: Rinse eyes immediately if debris enters during cutting; seek medical attention if needed
Midnight Black NeXT Generation 21 (NXT21) can be used on the following substrates:
- concrete – for recessed tray installation in wet areas
- tile – suitable for flush finish in indoor bathrooms
- timber – can be mounted with waterproofing underlay
- pavers – ideal for outdoor or landscaping applications
- waterproofing membranes – compatible with bonded waterproofing systems
Product documents
Lauxes NeXT Generation 21 NXT21 Linear Drain Kit - Midnight Black Physical Properties
| Property | Value |
|---|---|
| Product Name | Midnight Black NeXT Generation 21 (NXT21) |
| Dimensions | 5600mm x 100mm x 21mm |
| Material | Anodised Aluminium |
| Available Colours | Midnight Black |
| Finish | UV Stable Anodised |
| Length Options | 1m, 3m and 5.6m, Custom lengths on request |
| Grate Depth | 21mm |
| Grate Width | 100mm |
| Warranty | 25-Year UV Warranty, Lifetime Rustproof Warranty |
| Cutting Capability | Easily cut onsite to desired length |
| Joiner Compatibility | Compatible with Lauxes Joiners |
| Outlet Flexibility | Waste outlet can be positioned anywhere along the bottom tray |
| Cleaning Access | Easy roll-out feature for cleaning and maintenance |
| Application Suitability | Indoor, Outdoor |
| Tracking Prevention | Anti-tracking technology |
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