# OSIUB OSB-MB-01B Matte Black Single-Handle Waterfall Bathroom Faucet

Bathroom: The OSIUB OSB-MB-01B is a matte-black, deck-mounted single-handle faucet with a waterfall-style spout. Its listed dimensions and widespread installation detail may help assess sink fit, while the listing gives conflicting installation and hole-compatibility descriptions that buyers should resolve before purchase.

- [Original product page](https://best-deals.pro/product/osiub-osb-mb-01b-matte-black-waterfall-bathroom-faucet)
- [View offer](https://best-deals.pro/visit/osiub-osb-mb-01b-matte-black-waterfall-bathroom-faucet)
- Market: US
- Language: en-US
- Currency: USD
- Brand: OSIUB
- Model: OSB-MB-01B
- Category: Tools & Garden > Electrical & Plumbing
- Price: 29.99 USD
- Previous price: 99.99 USD
- Discount: 70%
- Price checked: 2026-11-14T07:05:50.861Z
- Rating: 4.8 / 5
- Reviews: 159

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- Single center lever and waterfall-style spout, with a listed spout height of 5.7 inches and reach of 4 inches.
- Listing claims the matte-black coating helps resist fingerprints, water spots and corrosion.
- Manufacturer describes a ceramic cartridge and claims the faucet is lead-free and complies with NSF/ANSI 372.

## Pros

- The manufacturer contents list includes a drain, deck plate, installation hardware and instruction manual.
- The one-handle design offers a single control point for hot and cold water.
- Customer feedback reports appealing appearance and easy installation, including positive comments about use in half baths.

## Specifications

### Identity
- Brand: OSIUB
- Model: OSB-MB-01B
### Design and materials
- Color: Matte Black
- Finish type: Painted
- Material: Stainless Steel
- Spout design: Waterfall
- Style: Modern
### Installation and dimensions
- Mounting type: Deck Mount
- Installation method: Widespread
- Hole count: 3 holes
- Mounting hole diameter: 1.41 inches
- Dimensions (D x W x H): 6.5"D x 6.5"W x 7"H
- Spout height: 5.7 inches
- Spout reach: 4 inches
- Weight: 2.6 pounds
### Operation and features
- Number of handles: 1
- Handle type: Lever
- Handle lever placement: Center
- Flow rate: 0.35 liters\_per\_second
- Special features: Lead Free, Pop Up Drain, Water Saving System
- Recommended uses: Bathroom, Kitchen, Laundry, Outdoor

## Before you buy

- The listing is inconsistent about fit: it specifies widespread installation and 3 holes, but also claims compatibility with 1-hole or 3-hole sinks. It mentions a 6.5-inch deck plate while separately describing a 6.5-inch-wide overall dimension. Verify the sink layout and plate dimensions for the selected listing before buying. The advertised 20% water saving, 65% noise reduction, 15-minute installation, NSF/ANSI 372 compliance and lifetime support are manufacturer claims, not independently confirmed here.

## In the box

- Bathroom faucet (Included)
- Deck plate (Included)
- Drain (Included)
- Installation hardware (Included)
- User manual (Included)

## A good fit for

- Buyers looking for a matte-black, single-handle waterfall-style faucet for a bathroom or half bath.
- People whose sink setup matches the listed deck-mounted widespread configuration and who want a drain and deck plate in the listed kit.

## Less suited to

- Buyers who need confirmed fit for a particular sink-hole spacing or a guaranteed 1-hole installation without clarifying the listing's conflicting fit details.

## Customer feedback

Customer feedback highlights the faucet's appearance and ease of installation, with reported positive functionality for half baths. That feedback may matter to buyers considering a straightforward vanity upgrade, but it does not resolve the listing's uncertainty about sink-hole compatibility. Aggregate ratings skew strongly toward five-star ratings, while a smaller share is in the middle rating categories, so the overall picture is favorable but not unanimous.
- Positive themes: Customer feedback describes the appearance as appealing and installation as simple.

## Frequently asked questions

### Is this faucet for a one-hole or three-hole sink?
The listing specifies 3 holes and widespread installation, but also claims compatibility with 1-hole or 3-hole sinks. Confirm the selected configuration and deck-plate fit with the seller before purchase.
### What is included?
The manufacturer’s included-components list names the faucet, deck plate, drain, installation hardware and instruction manual.
### What are the listed spout dimensions?
The listing gives a spout height of 5.7 inches and a spout reach of 4 inches.
### What does the manufacturer claim about materials and certification?
The manufacturer describes stainless steel construction, says the faucet is lead-free, and claims NSF/ANSI 372 compliance. These are listing claims, not independent verification.

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## Images

![OSIUB OSB-MB-01B Matte Black Single-Handle Waterfall Bathroom Faucet — 1](https://best-deals.pro/i/XkpAVhiiGaxS6uZevZHpjbbCsE_gZdOBfO_x-vXfk_0AZxRzEzVpim9k9-2zrPEoQ8J7a6sp2KNeKFB8g7lRlpmtX_bGWjFwkl1c8TOdY0tIr2PopNxVcnI4.jpg)

![OSIUB OSB-MB-01B Matte Black Single-Handle Waterfall Bathroom Faucet — 2](https://best-deals.pro/i/ZmA_o3CF_nFXdejuF96KR8ANMuBaxy9nFS5vkdi3ch4yCuVZBJzBxFhE8iNYim2cMsNUQdx4rvgZSkzNXcD1bhzSNmdWE2uT86ocNi45diEYYOUWpOAFIhja.jpg)

![OSIUB OSB-MB-01B Matte Black Single-Handle Waterfall Bathroom Faucet — 3](https://best-deals.pro/i/kfY8Lj34WTpOhrmJsTjgFsM3Ixu8j-XtE1oL2U0u7srj3p3-dFcz_-GrA1LfWQ4QkCg5VM7MbC4Np07ej1lleSiQ0TAcUyXGDQ2-EztqyOL34Dityw8QD_iO.jpg)

![OSIUB OSB-MB-01B Matte Black Single-Handle Waterfall Bathroom Faucet — 4](https://best-deals.pro/i/w9W84JhOnVoOTb3lpGcOQF9vHksKfactjvjZ56p5eY9-YhVzJxAtyjV3cqideHeAFU6X-ElJ8_5Qf7KKE2TL9Peh49DQuVWd8PzqLNZMUoNaocAfFGhnEodd.jpg)

![OSIUB OSB-MB-01B Matte Black Single-Handle Waterfall Bathroom Faucet — 5](https://best-deals.pro/i/4zpB_lKNo1HUE16-SOoFLz1S7Y_66-B3G1DK4HJbj-N7umIB9Htv9Xmf2azky47oEuWT2_FFHg5DaozMu65fJIBM5zrTsHbBOXOKZTIfBBejc4ommVlGfouf.jpg)

![OSIUB OSB-MB-01B Matte Black Single-Handle Waterfall Bathroom Faucet — 6](https://best-deals.pro/i/AQ3jMH5f2S3qhp6CWlIyzUJjNok3JBlC7iaKBqFemguIjRe-Sd1Sx3qVYBtkpK7Gj0iqpWY9magYX1gk5gxUmKwT-qBhjsG8QAeq7zrR_hfu5jpRtNDvosIR.jpg)

![OSIUB OSB-MB-01B Matte Black Single-Handle Waterfall Bathroom Faucet — 7](https://best-deals.pro/i/enIJv8Akr6cOXT1ZR6CBdtUxUF0vvRVcoLVYptdKf7P_EG6r1q46sfzCPU_PGJ9Gx7Vn0FFACaC8o0_PcivF_fBNCIBeiMNRQQqgl6ueO7gPGPodHh6wwPnK.jpg)