John Boos UBS3-1836 Slim-Line 3-Compartment Underbar Sink - JBUBS31836
When you purchase the John Boos UBS3-1836, you are investing in a reliable 3-compartment sink. It has three 10” wide x 14” front-to-back x 10” deep compartments. Each has a set of removable splash mount faucet holes with 4” centers to accommodate a variety of faucet types (faucet not included). The 1-1/2” drains and overflow stand pipes keep your plumbing working reliably.
The UBS3-1836 is made of stainless steel. This 18/300 stainless steel build ensures longevity. It also makes it simple to maintain. Just wipe it clean! The 3” backsplash also improves the sanitation of surrounding areas by keeping spills and splashes confined to the sink and not on the walls. This prevents stains and potential water damage.
The underbar sink unit is NSF certified for commercial applications.
Features
- ALL 18 GAUGE STAINLESS STEEL CONSTRUCTION
- TYPE 300 STAINLESS STEEL WITH #4 POLISH, SATIN FINISH
- SLIM LINE 18” DEEP FRONT TO BACK
- STANDARD PRE-DRILLED HOLES ON SIDES FOR ATTACHING ADJACENT UNITS TOGETHER
- REMOVABLE FAUCET PLATES WITH 4” ON-CENTER SPLASH MOUNT FAUCET HOLES
- REMOVABLE PERFORATED DRAINBOARD INSERTS FOR INCREASED AIR CIRCULATION
- CREASED DRAINBOARDS FOR IMPROVED DRAINAGE
- STAINLESS STEEL 1-1/4” FRONT TO BACK BRACING
- FABRICATED SINK BOWL: 14” X 10” X 10” DEEP
- BOLT ON 1-5/8” STAINLESS STEEL LEGS FOR FAST INSTALLATION
- 1” ADJUSTABLE STAINLESS STEEL BULLET FEET
- Z-CLIP TO MOUNT TO WALL
- BOLT TO ADJACENT UNDERBAR PIECE
- 1-7/8” DRAIN WITH BASKET
- 1-1/2” NPS DRAIN CONNECTION
Specifications
| Model |
UBS3-1836 |
| Dimensions (H×W×D) |
32.5" × 36" × 18" |
| Approximate Weight |
61 lbs. |
What our Experts Think
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Pro‑Grade 3‑Compartment Utility
A commercial‑style 3‑compartment underbar sink that keeps washing, rinsing, and sanitizing organized and efficient.
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Space‑Smart Slim‑Line Design
The 18″ × 36″ footprint fits tight underbar areas while still offering three deep basins — ideal where space is limited but performance is essential.
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Commercial‑Grade Stainless Steel
Durable, corrosion‑resistant construction stands up to frequent cleaning and heavy use in bars, restaurants, and busy kitchens.
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Efficient Workflow Layout
Dedicated basins for wash, rinse, and sanitize help keep your operation compliant and efficient, reducing cross‑contamination and speeding service.
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Easy to Clean & Maintain
Smooth stainless surfaces wipe down quickly, supporting professional hygiene standards without extra effort.
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Stable & Reliable Performance
Engineered to withstand daily heavy use while maintaining structural strength and basin integrity.
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Expert Recommended Choice
A top pick for bartenders, restaurant operators, and kitchens that need a compact, durable, and high‑performance underbar sink solution.
Q&A
Q: What is the John Boos UBS3‑1836 Slim‑Line 3‑Compartment Underbar Sink?
A: A commercial‑grade stainless steel underbar sink with three compartments in a slim footprint, designed for efficient washing and rinsing in bars, restaurants, and back‑of‑house areas.
Q: What are the dimensions?
A: 36″ wide × 18″ deep slim design that fits underbar spaces while providing full‑size sink capacity.
Q: What’s included?
A: Three sink basins, drain outlets, and durable stainless steel body ready for plumbing connections.
Q: What materials and construction quality?
A: Heavy‑duty stainless steel with welded seams and corrosion‑resistant finish built for frequent use and easy cleaning.
Q: What is it used for?
A: Ideal for washing, rinsing, and sanitizing glassware, bar tools, equipment, and prep items in bars, restaurants, cafes, and commercial kitchens.
Q: How does it improve workflow?
A: Separates wash, rinse, and sanitation stages, increasing efficiency and hygiene in high‑volume service areas.
Q: Is installation required?
A: Yes—professional plumbing and secure mounting to underbar supports are recommended for proper drainage and stability.
Q: Where is it best used?
A: Underbar stations, back‑bar prep areas, cafes, and any tight spaces needing multi‑compartment sink functionality.
Q: Can it handle heavy use?
A: Yes—stainless construction withstands rigorous daily service and frequent cleaning.
Q: What’s the main user benefit?
A: Offers organized, sanitary wash zones in a space‑saving design to streamline bar and kitchen cleanup.
Maintenance Tips
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Clean after each use: Wash all sink basins with mild soap and warm water; rinse and dry to prevent water spots and mineral buildup.
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Avoid harsh abrasives: Skip steel wool, wire brushes, bleach, or chloride‑based cleaners that can scratch or dull the stainless surface.
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Wipe with the grain: Clean in the direction of the stainless steel grain to maintain the finish.
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Keep drains clear: Regularly remove debris from sink drains to ensure proper water flow.
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Inspect and tighten fittings: Periodically check and tighten faucet, drain, and mounting connections to prevent leaks and loosening.
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Protect from impact: Avoid dropping heavy or sharp objects into the sink compartments to prevent dents or damage.
