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Dimension
Instruction

Kohler Parliament Back to Wall Toilet Suite Box Rim Rear/Side Inlet 665x378x850mm - Gloss White

SKU: KH-77304A-0
$810
Pick Up Usually Ready in ~1-5 Days

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Specifications

Features

Kohler Parliament BTW Toilet Suite

The Kohler Parliament (77304A-0) is a high-performance back-to-wall toilet suite crafted from premium vitreous china. Featuring a 4-star WELS rating and versatile water entry options, it combines Kohler’s signature durability with a sleek, easy-to-clean design suitable for any Australian home.

WELS 4 Star (3.5L Av. Flush) Box Rim Technology Vitreous China Dual Flush 4.5/3L
Installation Flexibility

Multiple Water Entry Options

This suite is designed to accommodate various plumbing layouts. It supports top left rear entry for a seamless look, or right/left pan side entry if required for your specific bathroom configuration.

Precision Fit

Versatile S-Trap & P-Trap Set-out

The Parliament suite is renovation-ready with a P-trap set-out height of 185mm. For floor drainage, the supplied Vario pan connector and 20mm offset collar allow for an S-trap set-out of 90mm - 140mm.

Hygiene & Efficiency

Box Rim & Dual Flush System

Engineered with Box Rim technology, the Parliament ensures powerful water distribution for a cleaner bowl with every flush. The dual flush system (4.5/3L) optimizes water usage without compromising performance.

User Comfort

Quiet Close & Quick Release™ Seat

The included Parliament toilet seat features Quiet-Close™ technology to prevent slamming. The vertical Quick-Release™ functionality allows for easy removal, making it simple to clean those hard-to-reach areas.

Note: A measurement deviation of ±5mm is regarded as a common and acceptable variation in ceramic products. Standard S-trap set-out is 90-140mm. For 160-230mm set-out, part 98451A-0 is required. Always confirm plumbing requirements before installation.
Please double-check the dimensions if you want to change to a colored button, as standard sizes may not fit.

Product Information

MODEL
Main Product Code KH-77304A-0
MATERIAL & FINISH
Material Vitreous China
Colour Gloss White
TECHNICAL INFORMATION
Flush Type Dual Flush (Box Rim)
Water Entry Top left rear entry or right/left pan side entry
P-Trap Set Out 185mm height
S-Trap Set Out 90mm - 140mm (using supplied vario pan connector & 20mm offset collar)
Water Pressure 20 psi (137 kPa) to 80 psi (551 kPa)
Flush Button Note Please double-check the dimensions if you want to change to a colored button, as standard sizes may not fit.
CERTIFICATION
WELS Rating 4 Star Rated
Water Consumption 4.5/3L (3.5L average flush)
PACKAGE CONTENTS
Main Components Toilet pan, Toilet cistern (4.5/3L), Parliament quiet close vertical Quick Release™ seat
Installation Kit Vario pan connector, Offset pan collar (20mm), Floor fixing bolts and anchors
Valves & Hoses Fill valve (rear), Fill valve (side), Rear entry water supply hose, Side entry caps & hose ring
INSTALLATION NOTES
Hose Info Pan side entry water supply hose is not supplied and must be purchased separately.
Requirements Installation of a remotely located inlet shut-off valve (not supplied) is required.
FEATURES
Feature 1 Box Rim Technology -- Ensures efficient water distribution and a more hygienic, easy-to-clean bowl.
Feature 2 Dual Entry Versatility -- Supports both rear and side water inlets to suit various installation requirements.
WARRANTY
10 Years Warranty 10 Years warranty replacement on products
1 Year Warranty 1 Year replacement product or parts

Supplier's Gallery

Dimensions

Product Options

📐 Choose the Correct Trap for Your Toilet Suite

The set-out (rough-in) distance determines which trap you need. This is the measurement from the finished wall or floor to the centre of the waste outlet.

Tip: Ensure you measure from the tiled surface, not the bare slab or skirting board.

P-Trap Connection
🔵 Option 1

P-Trap (Wall Outlet)

Suitable for: Waste pipe that goes directly into the back wall.

Set out height: 185mm Vitreous china construction
👉 Choose P-Trap if your plumbing outlet is located on the wall at 185mm height.
S-Trap Connection
🟢 Option 2

S-Trap (Floor Outlet)

Suitable for: Waste pipe located in the floor.

Standard: 90–140mm Optional: 160–230mm*
👉 Choose S-Trap if your floor waste outlet is between 90mm and 140mm.

🧭 Selection Quick Guide

Plumbing Setup Recommended Trap Set-out Distance
Wall Outlet P-Trap 185mm (Height)
Standard Floor Outlet S-Trap 90mm – 140mm
Extended Floor Outlet S-Trap (Optional) 160mm – 230mm*

⚠️ Important Notes

  • Always measure from the finished wall surface.
  • If unsure, consult your plumber before purchase.
  • Measurement deviation of ±5mm is normal.

Instruction

Technical Specifications & Installation

Detailed dimensions for the Kohler Dual Back to Wall Toilet (77304A-0).

📄
Kohler 77304A-0 Specification Sheet (PDF)
Includes S-trap (90-140mm) and P-trap (185mm) technical drawings, weight details, and water supply pressure requirements.
Download PDF
Note: Installation must be performed by a licensed plumber.

Buying Guide

About Brand

Luxury dark bathroom featuring Kohler rain shower and fittings

KOHLER brings a world of personal expression to the bathroom, combining elegant design, advanced technology, and exceptional craftsmanship. From refined tapware to intelligent toilets and premium bathroom fixtures, KOHLER delivers solutions that balance style and performance. Whether creating a dream bathroom or upgrading a compact space, the brand empowers you to personalise your environment with confidence and precision.

🎨

Design-Led Expression

KOHLER products are crafted to elevate personal style, offering refined aesthetics that transform bathrooms into unique, expressive spaces.

⚙️

Intelligent Innovation

From advanced toilet technology to modern bathroom solutions, KOHLER integrates cutting-edge innovation to enhance comfort and functionality.

🛁

Complete Solutions

KOHLER offers a comprehensive range of tapware, toilets, and fixtures, making it easy to create a cohesive and fully customised bathroom space.

🏆

Craftsmanship & Expertise

Backed by KOHLER’s global craftsmanship and KB Australia’s local expertise, every product is designed to deliver quality, reliability, and a premium experience.

Explore the KOHLER collection

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Browse the full KOHLER range and use filters to find the right product, finish and style.

Shipping

MyHomeware Delivery/Returns/Refund Policy
Standard Delivery

2 - 7 Business Days for Metro Area's (ALL STATES).
7 - 15 Business Days for Regional Area's (ALL STATES).

Missed Delivery

If a scheduled delivery is missed due to the recipient not being available at the designated location during the agreed delivery time, an additional re-delivery fee may be applied. We kindly ask our customers to ensure they or an authorized representative are present at the delivery location at the specified time to avoid these additional costs. Any extra charges will be communicated and agreed upon prior to the second attempt of delivery.

Additional charges may apply under certain circumstances in addition to the base delivery fees. These special conditions include but are not limited to:

  • Elevator/stair delivery: If the delivery location requires the use of stairs, or if the location is not directly accessible by elevator, this will increase labor and time costs.
  • Difficult delivery locations: If the delivery location is particularly hard to reach, or if it requires more than one person to safely deliver the goods, this will require additional resources.

Please note that these circumstances will result in extra delivery fees. These charges will be evaluated on a case-by-case basis and, if applicable, will be billed separately to the customer in a supplementary invoice. We appreciate your understanding and cooperation on these matters.

Pick Up

Once order received, we will process and get the order ready for you ASAP. When your order is ready for collection, we'll send you an email notification, with the Booking number and all the details, so you may come and collect in time.

Order Processing and Delays

After you have completed your order through our website, you'll receive a system generated Order Confirmation Email.

Once the order has been shipped, we'll send you a Notification with the tracking information for your reference.

Order processing: Please allow 0-3 business days for your online order to be processed. In most cases it will be within the first 24hrs as we aim to get every order off as soon as possible.

Approximate delivery timeframe: After order has been shipped, standard shipping time normally take up to 2 - 7 business days in metro areas (all states), and 7 - 15 business days in regional areas (all states). The actual delivery time will depend on the courier that carries your parcel.

*Please Note:
All orders will be processed and sent as soon as possible after received. The Timeframe estimates from when the parcel is sent and only account for Business Days. We will do our best to ensure delivery within estimated delivery time, these do not include delays that outside our control. Factors such as public holidays and peak delivery times might cause delays. During Christmas and sale periods please allow extra time for your parcels to arrive. We aim to get your orders out ASAP, as we know how important it is to receive your items promptly. Please know that not always, but in some instances the volume of orders we receive may increase the delivery timeframe marginally.

There are limitations on all courier networks and for some remote delivery areas, the couriers will not deliver to door. In these cases, they will deliver to a local depot or to the local Australia Post office and you will be notified to collect your parcels.

Due to stock list updates and a high volume of demand for many products, there are times that the items you wish to purchase may show available but suddenly run out of stock just after you placed the order.

If your order was successfully placed, but the item turns out to be no stock, we will notify you via email with the following options:

  • Cancel back order items: We will remove the back order (BO) items and send out the available products to you first.
  • Cancel the entire order: We will cancel the entire order from that warehouse for immediate store credit or a money refund.
  • Wait for Replenishment: You may choose to wait for the BK item to restock.
Returns & Refund Policy

1. You are welcome to return products for a refund if they are;

  • (1) Deemed faulty,
  • (2) Damaged,
  • (3) Have missing parts,
  • (4) Incorrect product/s were sent to you in error
  • (5) Due to the following reasons, including but not limited to; product does not fit, change of mind, product is no longer required, or is unsuitable etc.
Products being returned need to be in a resalable condition; with original packaging intact. Please include your proof of purchase with the return of goods.

2. Customers can contact our Sales Support team via Email sales@myhomeware.com.au, or support@myhomeware.com.au; regarding a return, or make contact via Online Chat, Phone, or simply complete and forward the Online Return Form.

3. Return/Exchange is flexible depending on the status of the product/s.

3.1   Products in Unused and Resalable Condition:

You have 365 days to return your purchase for a full refund, as long as the product is in original condition, no writing or damage to the packaging, uninstalled and resalable condition. Feel free to contact us within 1 year of receipt regarding the return, the team will reply and advise the return/exchange process.

3.2   Product has been installed, however still in OK condition, Come with all parts.
  • 1-3 Months: Can return for refund, NO 'Restocking fee' will apply.
  • 3-12 Months: Accept returns. A 15% 'Restocking fee' will apply and the team will refund less than 15% restocking fee.
  • Over 12 months: Return and Refund WILL NOT be accepted unless the product is deemed defective.
Please Note: Days should be counted from the original date of purchase, or, for any back ordered items from the date item/s were received.

4. MyHomeware is not liable for any incidental, indirect, consequential, or damages of any nature and from the sale of the products.

5. Warning:

5.1   Custom orders and Special orders

Custom orders and Special orders are NOT RETURNABLE and CANNOT BE CANCELLED for any reason once placed due to the custom and made to order processes involved.

  • Custom orders/items including but not limit to, stone top with cut tap/waste hole(s); custom made vanity/stone top; custom made shower screen; smart bidet seat; custom cut to size shower grates etc...
5.2   Bulk Orders/Deliveries

Some restrictions will apply to bulk orders/deliveries. If the total return amount is Over $5000 including freight cost, 15% Restocking Fee will be applied accordingly, refund will be made after deducting 15% restocking fee.

Back to Wall Toilet Suites FAQs

Is a back to wall toilet better?

Yes, a back to wall loo is often considered better for modern homes due to its sleek, space-saving design and easy-to-clean surface. A back to wall wc conceals plumbing for a tidy look and offers improved hygiene with fewer crevices where dirt can collect. Many back-to-wall toilets for sale at MyHomeware also support efficient tornado or vortex flushing systems, making them both stylish and practical.

How to install a back to wall toilet?

Typically, you can follow these steps to install a back-to-wall toilet:
Check Set-Out: Measure the rough-in distance (e.g., 100–220mm for S-trap or 180mm for P-trap) to match your toilet model.
Position the Pan: Align the toilet pan flush against the wall, ensuring the back to wall toilet bowl sits level.
Connect the Trap: Fit the S- or P-trap using the adjustable connector (cut if needed).
Attach the Cistern: Secure the cistern to the wall and connect the water inlet (top, bottom, or back entry).
Seal and Test: Seal around the base with silicone, turn on the water, and test for leaks.
Note: The back to wall loo installation involves careful planning and measurements, and a professional installation is highly advised.

How to maintain a back-to-wall toilet for longevity?

To maintain your back-to-wall toilet for longevity:

  • Clean regularly using non-abrasive cleaners to protect glazed surfaces.
  • Use a rimless-safe brush to avoid scratching the back to wall toilet bowl.
  • Wipe down external surfaces to prevent dust buildup in tight gaps.
  • Check inlet and flush valves annually for wear.
  • Avoid harsh chemicals that can damage seals or soft-close seats.

Do back to wall toilets save space?

Yes, back to wall WCs are ideal for smaller bathrooms as the concealed cistern and compact design reduce visual clutter and maximise usable space, making the room feel more open.

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