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For indoor and outdoor drainage installations where a shallow clearance and high load capacity are required, the Silver NeXT Generation 21 NXT21 Linear Drain Kit provides a 21mm deep anodised aluminium drainage solution. This system is designed with an anti-water tracking mechanism to manage runoff, and features an easy roll-out top grate to simplify regular cleaning and maintenance access.
Water management and durability
The drainage system is manufactured from UV-stable anodised aluminium, making it suitable for direct outdoor exposure without material degradation. The structural profile is rated to Class B, supporting a maximum load of 10.2 tonnes, which makes it suitable for pedestrian and light vehicular areas. The design incorporates a choice of waste outlets and supports the use of joiners to extend the run length for long-format installations. WaterMark certification under WMTS - 040 provides third-party verification of compliance for plumbing installations.
Numbers that matter
- 21mm depth: Shallow profile for installations with tight slab or floor-screed clearance.
- 100mm width: Standard wide-channel design to optimize surface water collection.
- Class B load rating: Accommodates loads up to 10.2 tonnes, protecting the channel from collapse in light traffic zones.
- DN90 compatibility: Outlets suit 40mm, 50mm, 72mm, and 80mm waste pipe integrations.
- Anodising waste allowance: For the 3000mm kit (usable length 3.0m, full length 3.2m) and 5600mm kit (usable length 5.6m, full length 5.8m), extra physical length is supplied to allow for anodising process wastage.
Limitations
- Do not allow the anodised aluminium grate to come into contact with wet cement-based products during installation, as this will damage the finish; use a template to protect the unit.
- Do not use abrasive cloths or acidic chemical cleaners on the grates; regular, gentle cleaning with soapy water is required to maintain the anodised surface.
- Installation must be completed by a licensed plumber in accordance with AS/NZS 3500.2.
Installation
For clean cuts, use a compound mitre saw fitted with a multi-material cutting blade of 80 teeth or more. Drill out the floor waste outlet hole using a Lauxes TCT hole saw of a suitable size for your pop waste.
When preparing the assembly, cut the bottom tray 3mm shorter than the final desired installation length to allow clearance for the end caps. Cut the top grate 1mm shorter than the bottom tray to ensure a clean fit and to allow the grate to roll in easily. Apply a bead of silicone to the outside of the tray when securing the end caps, and apply silicone around the lip of the pop waste before securing it to the underside of the bottom tray.
Frequently Asked Questions About Silver 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.
Silver Use 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 Silver 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.
NeXT Silver 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
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 Linear Drainage Grate 21mm x 100mm – Silver Physical Properties
| Property | Value |
|---|---|
| Product Name | Silver NeXT Generation 21 (NXT21) |
| Dimensions | 5600mm x 100mm x 21mm |
| Material | Anodised Aluminium |
| Colour | Silver |
| 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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