Are Back to Wall Toilets a Good Idea?
Back to wall toilets offer a sleek, modern design that maximizes bathroom space and simplifies maintenance. In this blog post, we explore the pros and cons of back to wall...
WELS 6 Star Back to Wall Toilet Suite — 655x380x875mm
The Ambulant easy height back to wall toilet suite features clean lines due to the sleek design and concealed plumbing fittings. Designed for accessibility and water efficiency, this model can be compatible with the Drainwave sewer dosing unit, delivering exceptional performance in both new projects and full bathroom renovations.

6 Star WELS Rating · 4.5/3L Dual Flush System
When installed with Drainwave, this toilet suite achieves a WELS 6 Star rating — the highest water‑efficiency classification available for toilets in Australia, delivering 4.5L full / 3L half flush (3.3L average). The suite carries a 4 Star rating if purchased alone, but paired with Drainwave it meets the most stringent water‑saving requirements while maintaining powerful flushing performance.

Drainwave Sewer Dosing Unit
Purpose‑built to complement ultra‑low dual flush toilets and other water‑efficient plumbing fixtures, the Drainwave is a PVC sewer dosing unit that collects and stores waste water, then releases it in controlled pulses to accelerate flow through drain lines. This prevents dry drains and solids build‑up — common problems in high‑efficiency plumbing systems — helping keep pipes clear and reducing the risk of blockages.

Serves Up to 6 Toilets · 6m Horizontal Range
A single Drainwave unit can service up to six connected toilets, making it ideal for large homes, dual‑living setups, or multi‑bathroom configurations. The system supports a maximum horizontal distance of 6 metres between the Drainwave unit and the furthest toilet, offering substantial layout flexibility. The toilet suite comes with a variable connector bend for greater set‑out flexibility and is available as P‑Trap or S‑Trap (65‑150mm roughing‑in).

Back to Wall Design · Ambulant Height
The back to wall configuration conceals plumbing fittings behind the pan, creating clean, uninterrupted lines for a sleek modern look. Ambulant easy height improves accessibility, making sitting down and standing up easier for a wider range of users. Built from full vitreous china with an easy‑clean gloss finish, the suite includes a heavy‑duty soft‑close seat (quick‑release, adjustable side buffers) and WDI valves — all backed by a market‑leading lifetime warranty.

| MODEL | |
|---|---|
| Main Product Code |
AZ-OK-9LSDU+AZ-OK-06601E / AZ-OK-06601E |
| MATERIAL & FINISH | |
| Material |
- Toilet Suite: Full Vitreous China Construction - Drainwave Sewer Doing Unit: PVC Construction |
| Colour | White |
| Finish |
Easy Clean Ceramic Gloss Finish |
| TECHNICAL INFORMATION | |
| Toilet Seat | Quick Release Heavy Duty Soft Close Seat with Adjustable Lateral Movement Buffers |
| Toilet Dimensions | 655x380x875mm -- A measurement deviation of ±5mm is regarded as a common and acceptable variation in ceramic products. |
| Default S-Trap |
65-150mm |
| Optional P-Trap |
TSP-P180: 180mm |
| Water Inlet Position | WDI inlet and outlet valves: Back Inlet only, left side |
| CERTIFICATION | |
| WELS | Approved |
| WELS Star Rating |
4 Star rating (If purchased alone), 6 Star rating (If installed with Drainwave) 3L per half flush, 4.5L per full flush, 3.3L per average flush |
| PACKAGE CONTENTS | |
| Main Product | 1*Back to Wall Toilet Suite |
| Accessories | With Drainwave or No Drainwave |
| FEATURES | |
| Feature 1 | European Design |
| Feature 2 | Ambulant Height -- Offers a higher seating position that reduces strain on knees and joints when sitting down or getting up, enhancing comfort and independence for ambulant users and those with limited mobility. |
| Feature 3 |
Drainwave Sewer Doing Unit: - Australian Design - Australian Standards Compliant - Improves Drain Carry Efficiencies - Can serve up to 6 toilets - Maximum 6m horizontal distance between drainwave and furthermost toilet - Designed to accelerate waste through the drain line to prevent waste build-up or dry drains - Drain line flush augmentation device to compliment Ultra Low Dual Flush (3/2 L) toilets and other water efficient plumbing fixtures |
| WARRANTY | |
| Lifetime Warranty | Market Leading Lifetime Warranty |
| NOTE | |
| Note | To achieve a 6-star rating for your toilet, it must be installed with the Drainwave. |
🚽 Select Your Azzurra Ambulant Height Toilet Configuration
The Azzurra WELS 6 Star Dual Flush Back to Wall Toilet Suite Ambulant Height with Drainwave combines European design with water efficiency and accessible comfort. Choose your toilet package first, then select the correct trap option for your plumbing setup.
Tip: WELS 6 Star rating can only be achieved when the toilet is installed with Drainwave. Without Drainwave, the suite is rated 4 Star. Ambulant easy height improves accessibility for a wider range of users.
① Toilet Package

6 Star Suite (with Drainwave)
Package: Toilet Suite + Drainwave Sewer Dosing Unit

4 Star Suite (without Drainwave)
Package: Toilet Suite Only (No Drainwave)
② Trap Configuration (Plumbing)

Default S‑Trap (65‑150mm Rough‑In)
Type: Floor outlet (default — included)

P‑Trap (180mm Rough‑In)
Type: Wall outlet (optional — sold separately)
🧭 Quick Reference
🔧 Selection Summary: For WELS 6 Star rating → Choose 6 Star Suite (with Drainwave) | For WELS 4 Star rating → Choose 4 Star Suite (without Drainwave) | Floor waste pipe (65‑150mm) → S‑Trap (included) | Wall waste pipe → P‑Trap (180mm, optional)
| Your Needs | Recommended Option |
|---|---|
| Maximum water efficiency (WELS 6 Star) + drain line protection | 6 Star Suite (with Drainwave) — must be installed with Drainwave to achieve 6 stars |
| Standard toilet suite (WELS 4 Star) / no Drainwave required | 4 Star Suite (without Drainwave) — toilet suite only |
| Floor waste outlet 65‑150mm | S‑Trap (default, included) |
| Wall waste outlet (standard 180mm) | P‑Trap (optional, sold separately — TSP‑P180) |
⚠️ Important Notes
Delivery timeframes, order processing, pickup and delivery charges — everything about getting your order to you.
Last updated 15 July 2026
| Destination | Delivery time after dispatch |
|---|---|
| Metro areas (all states) | 2–7 business days |
| Regional areas (all states) | 7–15 business days |
Some delays sit outside our control:
Charges beyond the base delivery fee may apply where:
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