If you’re remodeling your bathroom on a budget, you may be tempted to ask: can you use a sink faucet for a bathtub? After all, both fixtures deliver hot and cold water through a spout. However, the short answer is no — you should not use a sink faucet for a bathtub. Bathtubs require a much higher water flow rate than sink faucets provide, and using the wrong faucet can lead to painfully slow fills, plumbing issues, and even building code violations.
In this guide, we’ll explain why sink faucets don’t work for bathtubs, the differences in plumbing design, and share our top picks for the best premium bathtub faucets ($300+) that are designed for performance and style.
Quick Picks: Best Bathtub Faucets
- Best Overall: Delta Trinsic Wall-Mount Tub Filler – Modern design, high flow rate, easy installation.
- Best Budget: Moen Align Two-Handle Deck-Mount Tub Faucet – Affordable premium option with reliable performance.
- Best Premium: Brizo Litze Freestanding Tub Filler – Luxury-grade style and powerful water flow.
Why You Shouldn’t Use a Sink Faucet for a Bathtub
While a sink faucet technically delivers water, it’s not designed for bathtub use. Here’s why:
- Flow rate: Sink faucets typically deliver 1.2–2.2 gallons per minute (GPM), while bathtub faucets often provide 6–10 GPM for quick fills.
- Valve design: Tub valves are built for higher volume, whereas sink valves restrict flow for water conservation.
- Connection size: Bathtub plumbing uses 1/2-inch or larger supply lines, compared to the smaller connectors on sink faucets.
- Code compliance: Most building codes require tub fillers to meet minimum flow rates, which sink faucets don’t achieve.
What Happens If You Use a Sink Faucet for a Bathtub?
- Your bathtub may take 30+ minutes to fill.
- Water pressure can be inconsistent or weak.
- Connections may not fit properly, leading to leaks.
- You may void warranties or fail inspections if remodeling.
When Sink Faucets Might Work (Rare Cases)
There are limited cases where a sink faucet could be used for a small soaking tub or DIY setup, but it requires careful modification and may not be code-compliant. Even then, flow will be slow. For safety and efficiency, always choose a faucet designed for bathtubs.
How to Choose the Right Bathtub Faucet
- Mount type: Wall-mount, deck-mount, or freestanding depending on tub style.
- Flow rate: Look for at least 6 GPM at 60 PSI.
- Valve compatibility: Ensure it matches your plumbing rough-in setup.
- Style: Modern, traditional, or transitional to fit your bathroom design.
- Durability: Solid brass construction and ceramic disc valves are best.
Detailed Reviews: Best Bathtub Faucets
1. Delta Trinsic Wall-Mount Tub Filler
Who it’s for: Homeowners wanting a sleek, space-saving tub filler.
- Key Benefits: High flow rate, durable brass body, modern design.
- Pros: Quick fill times, stylish, trusted brand.
- Cons: Requires wall plumbing setup.
Verdict: Best overall wall-mount tub faucet. Check Price on Amazon
2. Moen Align Deck-Mount Tub Faucet
Who it’s for: Those who prefer an affordable, premium-quality tub filler.
- Key Benefits: Dual-handle design, brass construction, flexible deck mounting.
- Pros: Affordable, durable, reliable performance.
- Cons: Requires tub deck holes.
Verdict: Best budget-friendly premium faucet. Check Price on Amazon
3. Brizo Litze Freestanding Tub Filler
Who it’s for: Buyers wanting a luxury freestanding tub setup.
- Key Benefits: Industrial-inspired design, hand shower included, premium gold finish option.
- Pros: Stunning design, high flow rate, versatile features.
- Cons: Higher cost, requires floor plumbing.
Verdict: Best premium freestanding tub faucet. Check Price on Amazon
4. Hansgrohe Metris Tub Filler
Who it’s for: Families who want efficient water flow and reliable German engineering.
- Key Benefits: Freestanding design, ceramic cartridge, strong water pressure.
- Pros: Durable, modern style, water-efficient.
- Cons: Requires professional installation.
Verdict: Best European-engineered tub filler. Check Price on Amazon
5. Kraus Arlo Freestanding Tub Faucet
Who it’s for: Homeowners seeking a modern, affordable freestanding faucet.
- Key Benefits: High-arc design, hand shower included, corrosion-resistant finish.
- Pros: Affordable for a freestanding faucet, stylish, solid brass build.
- Cons: Taller installation may require extra space.
Verdict: Best value freestanding tub faucet. Check Price on Amazon
6. GROHE Essence Tub Filler
Who it’s for: Homeowners looking for a refined, understated tub faucet.
- Key Benefits: Cool Sunrise brushed finish, ceramic cartridge, optional hand shower.
- Pros: Elegant design, reliable brand, long-lasting build.
- Cons: Subtle finish may not stand out in bold designs.
Verdict: Best subtle luxury tub faucet. Check Price on Amazon
Comparison Table: Best Bathtub Faucets
| Faucet | Mount Type | Flow Rate | Price Link |
|---|---|---|---|
| Delta Trinsic | Wall-mount | High GPM | View Price |
| Moen Align | Deck-mount | High GPM | View Price |
| Brizo Litze | Freestanding | High GPM | View Price |
| Hansgrohe Metris | Freestanding | Strong flow | View Price |
| Kraus Arlo | Freestanding | High GPM | View Price |
| GROHE Essence | Freestanding | High GPM | View Price |
FAQ: Sink Faucets vs. Bathtub Faucets
1. Can I use a sink faucet for a bathtub in a pinch?
Technically yes, but it’s not recommended. The flow rate is too low and connections may not match.
2. Why do bathtubs need special faucets?
They’re designed for higher flow to fill large tubs quickly and safely.
3. Can I install a kitchen faucet on a bathtub?
No. Kitchen faucets have similar limitations to sink faucets and aren’t designed for tubs.
4. What’s the minimum flow rate I should look for in a tub faucet?
At least 6 GPM at 60 PSI for efficient filling.
Conclusion: No, You Shouldn’t Use a Sink Faucet for a Bathtub
Can you use a sink faucet for a bathtub? No — bathtubs require higher flow rates, larger connections, and dedicated valves for proper function. Using a sink faucet will result in slow fills, leaks, and possible code violations.
The good news is that premium bathtub faucets are available for every style and budget. The Delta Trinsic is the best overall pick, the Moen Align offers great value, and the Brizo Litze is the ultimate premium upgrade.
Want a bathroom that’s stylish and functional? Choose one of these top-rated bathtub faucets and enjoy fast fills, reliable performance, and lasting beauty.