Discover top 3″ floor sink options that balance durability, ease of installation, and reliable performance. This guide highlights five recommended models suitable for residential and commercial settings, with concise specs to help you compare quickly. Each product section includes a direct Amazon link for further details and purchasing, along with key features to inform your decision.
| Product | Brand | Key Feature | Typical Use |
|---|---|---|---|
| Oatey 42721 Floor-Mounted Utility Sink | Oatey | 3 in. socket compatibility; durable, reliable support | Residential and commercial utility sinks |
| Zurn FD2375-NH3-H FD2375 Floor Sink | Zurn | 12″ cast-iron body with porcelain enamel interior; anti-splash dome | Sanitary, heavy-duty installations |
| Zurn FD2375-NH3 A.R.C. Floor Sink | Zurn | 12″ x 12″ floor sink with 3″ No-Hub; ARC model | Sanitary and industrial installations |
| Zurn FD2378-NH3 A.R.C. Floor Sink | Zurn | 8″ x 8″ or 6″ sump depth variants; anti-splash features | Compact or smaller footprint floors |
| AmGood Floor Drain Strainer | AmGood | Stainless steel strainer; 3″ connection compatibility | Drainage applications in commercial settings |
The following sections provide deeper insights into each option, focusing on build quality, installation considerations, and how they fit into different project requirements. Each product is presented with its official features, helping you weigh durability, compatibility, and maintenance needs without bias.
Oatey 42721 Floor-Mounted Utility Sink

The Oatey model is designed for both residential and commercial use with a focus on reliable performance and long-term durability. The 3 in. socket compatibility supports standard connections, while the white finish emphasizes clean, professional aesthetics in utility rooms, garages, and workshop areas. Oatey backs its products with strong technical and customer support programs, ensuring installers have access to resources during and after setup. This sink is well-suited for spaces where robust, simple installation is a priority, and where ongoing support is valued alongside product reliability.
Zurn FD2375-NH3-H Floor Sink With Dome

The Zurn FD2375-NH3-H combines a heavy-duty 12-inch cast-iron body with a white porcelain enamel interior, delivering a durable, easy-to-clean surface. The included ABS anti-splash dome strainers help minimize splash-back, contributing to safer operation in facilities with frequent wash-downs or heavy use. The half-grate design and solid construction make this model a strong choice for commercial kitchens, laboratories, and industrial settings where reliability and corrosion resistance matter most.
Zurn FD2375-NH3 A.R.C. Floor Sink

The ARC variant of the Zurn floor sink is recommended for sanitary installations, with a 12″ x 12″ footprint and a design that emphasizes sanitary performance and efficient drainage. This model integrates smoothly into commercial-grade plumbing systems where reliable drainage and ease of maintenance are essential, making it suitable for restrooms and service areas that demand robust, compliant equipment.
Zurn FD2378-NH3 A.R.C. Floor Sink

This floor sink offers a compact footprint with an 8″ x 8″ dimension paired with a 6″ sump depth, ideal for smaller installation spaces while still providing robust sanitary performance. The cast iron body with a white acid-resisting coating, plus a PVC anti-splash dome strainer, helps prevent splash-back and simplifies maintenance in lower-volume commercial or industrial settings that still require dependable drainage solutions.
AmGood Floor Drain Strainer

The AmGood floor drain strainers are designed for drainage applications with compatibility for standard 3″ connections. These strainer components are commonly used in commercial kitchens, restrooms, and service areas, offering a durable, easy-to-clean solution that aids in collecting debris and maintaining flow. The rugged construction makes it a practical choice for installations requiring straightforward replacement parts and reliable operation over time.
Zurn Adjustable Floor Drain

Designed for adaptability, this Zurn adjustable floor drain features a PVC body with a 3″ solvent weld connection, offering straightforward installation and reliable performance in a variety of settings. The durable construction and adjustable components support flexible integration into different floor layouts, while the compact design helps fit into tight spaces without compromising drainage efficiency.
Buying Guide: Key Considerations For 3-Inch Floor Sinks
- Material and finish: Cast iron bodies with enamel interiors are durable and corrosion-resistant, suitable for high-use areas. White or enamel coatings simplify cleaning and maintain a sanitary appearance in restrooms and kitchens.
- Diameter and sump depth: Common 3″ connection models come with varied sump depths (6″ to 12″). Choose based on install space, required drainage capacity, and floor height compatibility.
- Drainage performance: Look for anti-splash domes or strainers to minimize water spray and keep work areas cleaner. Dome design and strainer quality influence ease of maintenance and longevity.
- Installation and compatibility: Check for No-Hub or solvent-weld connections, as well as the overall footprint. ARC models or modular components can simplify replacements in existing plumbing setups.
- Maintenance and parts availability: Durable finishes, accessible replacement parts, and strong technical support help reduce downtime and maintenance costs over the product life cycle.
- Application context: For sanitary installations in kitchens or restrooms, prioritize models with corrosion-resistant interiors and proven splash control. For utility or workshop spaces, consider heavier-duty variants with easier access for cleaning.
- Compliance and standards: Ensure the chosen product aligns with local plumbing codes and any project-specific requirements for commercial facilities.
Choosing a 3-inch floor sink involves balancing durability, space constraints, and maintenance needs. The options reviewed here provide a spectrum from utility-focused sinks to sanitary-grade floor sinks with anti-splash features, giving facilities managers, contractors, and homeowners practical choices across different budgets and environments. Always verify dimensions, connections, and compatibility with existing piping before procurement.