Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your SUPERFLO HT-120 19-inch high rear outlet toilet. Please read this manual thoroughly before installation and use to ensure proper function and longevity of your product.

Image: The SUPERFLO HT-120 19-inch high rear outlet toilet, showcasing its design.
Product Features
The SUPERFLO HT-120 toilet is designed with user comfort and efficiency in mind. Key features include:
- Comfort Height: An extra-tall 19-inch height designed for ease of use, particularly beneficial for seniors, individuals with disabilities, and taller users.
- Rear Discharge Design: Suitable for bathrooms with wall drains. This design also allows for connection to a macerating pump for flexible installation locations.
- Dual Flush System: Water-saving options with 0.8 GPF (gallons per flush) for liquid waste and 1.28 GPF for solid waste, promoting water conservation.
- Slow-Close Seat: Features a bass slow-drop lid to prevent slamming, ensuring quiet operation and extending product life.
- Powerful Siphon Flush: Equipped with a high-quality glazed flushing pipe to prevent clogs and ensure efficient waste removal.

Image: Close-up of the dual flush button on the toilet tank, indicating water-saving options.

Image: Illustration of the slow-close toilet seat mechanism, highlighting quiet operation.

Image: Visual comparison of a comfort height toilet (19 inches) versus a standard height toilet (15 inches).

Image: Diagram illustrating the rear discharge design of the toilet, showing the outlet location.
Included Components
Please verify that all components are present before beginning installation:
- Toilet Bowl
- Toilet Tank
- Soft Close Seat
- Drain Valve
- Toilet Fill Valve
- Toilet Wrench
- Extension Tubes
- Tank Seal
- Water Tank Screws
- Rear Drain Connection Pipe
- Hardware for installation

Image: Visual representation of all components included with the SUPERFLO HT-120 toilet.
Setup and Installation
Proper installation is crucial for the optimal performance of your SUPERFLO toilet. Follow these steps carefully. Professional installation is recommended if you are unfamiliar with plumbing procedures.
Pre-Installation Considerations:
- Ensure your bathroom has a wall drain suitable for a rear outlet toilet. Refer to the dimension diagram for specific measurements.
- If connecting to a macerating pump, ensure the pump is compatible and installed according to its own manual.

Image: Detailed dimension diagram of the SUPERFLO HT-120 toilet, showing measurements for installation planning.
Installation Steps:
- Prepare the Drain Connection: Insert the extension tube into the water outlet on the wall. Ensure the dimension from the floor to the center of the drain is approximately 7 2/5 inches.
- Mark Bolt Positions: Position the toilet and use a pen to mark the bolt hole positions on either side of the toilet base. Ensure the toilet is correctly aligned before marking.
- Drill Holes: Use a drill to create two holes at the marked positions for the expansion screws.
- Secure Toilet Base: Insert the expansion screws into the drilled holes and use nuts to fasten the toilet securely to the floor. Cover the bolts with the provided caps.
- Install Tank Components: Correctly install the inlet and outlet valves into the toilet tank.
- Attach Tank to Bowl: Install the washer, tank nut, and black rubber ring onto the tank. Secure the tank and toilet bowl together using the two bolts provided.
- Install Toilet Seat: Insert the screws into the mounting plate for the seat and slide the plate onto the mounting tracks. Adjust the toilet lid to align with the edge of the toilet bowl before securing it. Then, insert the toilet seat into the seat holes and lock it with the nuts.
- Connect Water Supply: Connect the water supply pipe to the inlet of the toilet tank, ensuring it is tightened and leak-free.
- Test Flush: Press the flush button to ensure the toilet flushes properly and drains smoothly. Check for any leaks around the toilet and confirm all bolts and connections are secure.
Installation Videos:
Video: Step-by-step installation guide for the SUPERFLO Rear Outlet Toilet.
Video: Overview of the SUPERFLO Rear Outlet Toilet, including key features and installation aspects.
Video: Explanation of how a macerating pump system works, relevant if you choose to connect your toilet to one for basement installations.
Operating Instructions
Your SUPERFLO HT-120 toilet features a dual flush system for efficient water usage.
- Light Flush (0.8 GPF): Press the smaller button on the top of the tank for liquid waste. This uses less water, contributing to water conservation.
- Full Flush (1.28 GPF): Press the larger button on the top of the tank for solid waste. This provides a powerful flush to ensure complete waste removal.
The slow-close seat mechanism ensures the lid closes gently and quietly, preventing sudden drops and noise.
Maintenance
Regular cleaning and maintenance will keep your SUPERFLO toilet in excellent condition.
- Cleaning: Use mild, non-abrasive cleaners and a soft cloth or sponge to clean the ceramic surfaces. Avoid harsh chemicals or abrasive pads that can damage the glaze.
- Seat Care: Clean the polypropylene (PP) seat with mild soap and water. Do not use strong chemical cleaners, as they may damage the seat material.
- Check for Leaks: Periodically inspect the water supply connections and the base of the toilet for any signs of leaks. Tighten connections if necessary.
- Flush Mechanism: If the flush mechanism becomes sluggish, ensure the water level in the tank is correct and that no obstructions are present.

Image: The interior of the toilet bowl, highlighting its stain-resistant glazed surface for easy cleaning.
Troubleshooting
This section addresses common issues you might encounter. For more complex problems, please contact customer support.
Common Issues:
- Weak Flush:
- Ensure the water supply valve is fully open.
- Check the water level in the tank; it should be at the fill line.
- Inspect the flush valve for any obstructions or damage.
- Continuous Running Water:
- Check the fill valve for proper seating and adjustment.
- Ensure the flapper or flush valve seal is clean and properly seated.
- Leaks:
- Inspect all connections (water supply, tank-to-bowl, base bolts) for tightness.
- Check the tank seal for proper placement and integrity.
- Macerating Pump Issues (if applicable):
- If your toilet is connected to a macerating pump and it stops working or makes unusual noises, refer to the macerating pump's specific instruction manual.
- Some macerating pumps have an alarm that sounds if the impeller is blocked. If this occurs, disconnect power and clear any obstructions as per the pump's manual.
Specifications
| Feature | Specification |
|---|---|
| Brand | SUPERFLO |
| Model Number | HT-120 |
| Color | White |
| Product Dimensions (D x W x H) | 27"D x 17"W x 34.3"H |
| Material | Ceramic (Bowl), Polypropylene (PP) (Seat) |
| Item Weight | 88 Pounds |
| Installation Type | Rear Outlet (Floor Mounted with Wall Drain Connection) |
| Shape | Round |
| Flush Type | Dual Flush (0.8 GPF / 1.28 GPF) |
| Seat Height | 19 inches (Comfort Height) |
Warranty and Support
SUPERFLO is committed to providing high-quality products and excellent customer service. For any questions, technical assistance, or warranty claims, please contact our customer support team. Refer to your purchase documentation for specific warranty details.
Our dedicated after-sales service team is available to assist you.