For compact homes, a combined toilet and sink unit can save space without sacrificing hygiene. This guide highlights five practical options suited to small bathrooms, guest rooms, or basement updates. Each pick targets a specific user profile—from seniors needing comfortable height to renters seeking simple plumbing setups. The table below summarizes who each product best serves, helping you compare at a glance.
| Product | Best For | Why It’s Included |
|---|---|---|
| SUPERFLO Elongated Toilet with Sink | Small bathrooms needing an elongated bowl | 1.28 GPF, includes faucet, 12″ rough-in |
| Simple Project 3-IN-1 ADATall Toilet with Sink | Seniors or mobility-constrained users | 17″ height, 12″ rough-in, includes faucet |
| Simple Project Modern 2 in 1 Toilet with Sink | Comfort-oriented setup without excess height | Chair-height seating, 12″ rough-in, 1.28 GPF |
| 1500W Macerator Pump System | Basement or retrofits with separate sink and toilet | Macerator pump enables flexible routing |
| Simple Project 600w Macerating Toilet System | Basement or utility rooms needing integration | 3 water inlets, rear outlet, includes sink and shower |
SUPERFLO Elongated Toilet with Sink

The SUPERFLO unit combines an elongated toilet with a sink and faucet in a single compact system, ideal for small baths and powder rooms. It uses a 1.28 GPF single flush and includes a 12-inch rough-in. This option suits buyers who want a streamlined footprint without sacrificing a modern look. Best for: small bathrooms where an elongated bowl saves space but comfort remains a priority. Caution: ensure your plumbing can accommodate the integrated sink drain alongside the toilet line.
Simple Project 3-IN-1 ADATall Toilet with Sink

This 3-in-1 setup features ADA tall dimensions and a 12-inch rough-in, plus a faucet-equipped sink. It’s designed for seniors or users who benefit from a higher seating position while still delivering space savings. Best for: households prioritizing accessibility without expanding the bathroom footprint. Limitation: taller height may not suit all users or tight retrofits with low ceilings.
Simple Project Modern 2 in 1 Toilet with Sink

This 2-in-1 design emphasizes a comfort chair-height seat for easier seating and a compact 12-inch rough-in. The 1.28 GPF flush aids water efficiency, while the modern appearance fits contemporary bathrooms. Best for: users who want a comfortable height and a sleek, minimalist look. Caution: the 12″ rough-in requires precise plumbing alignment during installation.
1500W Macerator Pump System

This macerator pump system supports flush plumbing for a combined sink and toilet setup when gravity-fed options are limited. It handles up to 2800 GPH and up the 32.8 feet in vertical lift, with multiple inlet connections for versatile routing. Best for: basements or retrofits where standard drainage is impractical. Caution: installation requires electrical and plumbing work; professional guidance is advisable.
Simple Project 600w Macerating Toilet System

This system provides a compact, powerful setup with a rear outlet toilet bowl and integrated sink/shower options. It includes a 3-water inlets and an AC vent for basement applications, delivering quiet operation and space efficiency. Best for: utility rooms where maximizing space is essential. Limitation: macerator systems may require more maintenance than standard plumbing.
Buying Guide: Key Considerations for Combined Toilet and Sink Units
What should buyers evaluate before choosing a unit? Here are practical questions and criteria to compare:
- Flush efficiency and water use: Look for units with 1.28 GPF or similar efficiency and verify whether dual-function setups meet local codes.
- Height and accessibility: ADA-tall options can ease use for seniors or people with mobility issues. Consider chair-height seats and overall comfort.
- Rough-in distance: Most units use 12 inches; confirm existing rough-in measurements to ensure a proper fit.
- Drain and vent considerations: Macerator systems enable routing flexibility but may require electrical connections and professional installation.
- Multi-inlet plumbing: Some systems offer multiple water inlets or rear outlets; ensure compatibility with your bathroom layout.
- Maintenance and durability: Evaluate material quality, ease of faucet integration, and access to service parts.
Frequently Asked Questions
- What is a combined toilet and sink unit?
It is a compact bathroom fixture that integrates a toilet and a sink in a single footprint to save space. - Who should consider these units?
Ideal for small apartments, powder rooms, basements, and homes needing easier accessibility. - Do these units require special plumbing?
Some models use standard plumbing; others may require a macerator or venting adjustments. - Are these units gravity-fed or require power?
Most rely on standard gravity; macerator-based systems require electrical connections for pumping. - What maintenance should be expected?
Regular cleaning, faucet care, and periodic inspection of seals and vents help prevent leaks. - Which unit is best for accessibility?
ADA-tall or chair-height models are typically best for users needing easier seating and standing.