Why Choose This Model?

The Bobrick B-3644 is a specification-friendly recessed waste receptacle engineered for commercial restrooms where durability, safety, and visual cleanliness are priorities. Installed flush within the wall, it helps maintain clear floor space, improves traffic flow inside restroom stalls, and supports the built-in appearance preferred by architects and facility planners.

Constructed from heavy-gauge Type 304 stainless steel with an all-welded cabinet, the B-3644 is designed for long-term performance in high-use environments. The satin finish resists fingerprints and everyday wear, helping the unit maintain a professional appearance with less frequent maintenance.

For operational efficiency, the removable 12-gallon receptacle is secured with a tumbler lock keyed like other Bobrick accessories, allowing maintenance teams to standardize keys across the facility. Hemmed edges enhance safety during servicing, while the seamless beveled flange delivers a clean, gap-minimized installation.

As part of the Bobrick ClassicSeries®, this unit coordinates with other commonly specified washroom accessories to support cohesive restroom design.

Key Features

12-Gallon Capacity — Holds approximately 45.4 liters to help reduce servicing frequency in busy restrooms.

Recessed, Space-Saving Design — Installs within the wall to keep pathways clear and maximize usable space.

Type 304 Stainless Steel Construction — Corrosion-resistant steel supports long-term commercial durability.

All-Welded Cabinet — Enhances structural rigidity for demanding environments.

Satin Finish — Minimizes the appearance of fingerprints and surface wear.

Seamless Beveled Flange — One-piece drawn flange improves appearance while simplifying perimeter cleaning.

Locking Removable Receptacle — Tumbler lock helps deter tampering and is keyed like other Bobrick accessories.

Hemmed Edges for Safer Handling — Protect maintenance staff during removal and disposal.

ClassicSeries Coordination — Matches other Bobrick accessories frequently used in specification packages.

Specifications

• Capacity: 12 gallons (45.4 L)

• Rough Wall Opening: 16” W × 29-1/4” H × 4” minimum depth

• Material: Type 304 (18-8) stainless steel

• Finish: Satin

Planning Note

Designed to fit standard 4” (102 mm) wall depths. Coordinate with wall framing and mechanical placement prior to rough-in.

Dedicated Waste Cabinet: This unit is designed specifically for waste collection and is not convertible to a combination paper towel / waste configuration.

Optional Accessories

LinerMate® (Part No. 3944-134) — Helps secure liners and eliminates visible trash bag overhang for a cleaner presentation.

18-Gallon Waste Receptacle (Part No. 368-60) — Allows capacity expansion where higher waste volume is expected.

FAQ

What wall opening is required for installation? A framed rough wall opening of 16” wide × 29-1/4” high with a minimum recessed depth of 4”.

Is the waste container removable? Yes. The receptacle is fully removable for efficient servicing and is secured with a tumbler lock.

Does the lock match other Bobrick accessories? Yes. The lock is keyed like other Bobrick washroom accessories, allowing facilities to standardize keys.

Is this unit suitable for high-traffic restrooms? Yes. Its heavy-gauge stainless steel construction and recessed installation make it well suited for demanding commercial environments.

Does recessed installation provide advantages over surface-mounted units Recessed units help maintain clear floor space, reduce protrusions, support ADA planning, and create a more integrated architectural appearance.

Satin-finish stainless steel. Seamless beveled flange. Removable, 12-gal. (45.4-L) receptacle locks into cabinet. Rough Wall Opening: 16" W, 29 1/4" H, 4" min. depth (405 x 745 x 100mm).
MATERIALS:
Cabinet — 18-8, type-304, heavy-gauge stainless steel. All-welded construction. Exposed surfaces have satin-finish.
Flange — 18-8, type-304, 22-gauge (0.8mm) stainless steel with satin-finish. Drawn and beveled, one-piece, seamless construction.
Waste Receptacle — 18-8, type-304, 22-gauge (0.8mm) stainless steel with satin-finish. Front and side edges of bottom and all top edges are hemmed for safe handling. Secured to cabinet with a tumbler lock keyed like other Bobrick washroom accessories. Capacity: 12-gal. (45.4-L).

OPERATION: To empty waste receptacle, unlock with key provided.

NOTE: To accommodate disposable trash liners, order LinerMate®, sold as a optional accessory item. LinerMate eliminates unsightly trash liner overhang and facilitates installation and removal of disposable trash liners in the 12-gallon waste receptacle.

Options:
• LinerMate for 12-gal waste only: order Bobrick Part No. 3944-134.
• 18-Gallon Waste Receptacle: order Bobrick Part No. 368-60, with reusable vinyl liner Part No. 368-16.

INSTALLATION:
Provide framed rough wall opening 16" wide x 29-1/4" high (405 x 745mm). Minimum recessed depth required to finish face of wall is 4" (102mm). Allow clearance for construction features that may protrude into rough wall opening from opposite wall. Coordinate with mechanical engineer to avoid pipes, vents, and conduits. If unit projects above top of wainscot, provide aluminum channel or other filler to eliminate gap between flange and finish face of wall. Mount unit in wall opening with shims between framing and cabinet at all points indicated by an S, then secure unit with sheet-metal screws (not furnished).

SPECIFICATION:
Recessed waste receptacle shall be type-304 stainless steel with all-welded construction; exposed surfaces shall have satin finish. Flange shall be drawn and beveled, one-piece, seamless construction. Removable waste receptacle shall be secured to cabinet with a tumbler lock keyed like other Bobrick washroom accessories, have front and side edges of bottom and all top edges hemmed for safe handling, and shall have a minimum capacity of 12-gal. (45.4-L).