The Bobrick B-3961-50 is an interchangeable, touch-free mechanical roll towel dispenser module from Bobrick’s ClassicSeries. Designed to support changing facility needs, this module allows property managers and contractors to convert compatible Bobrick combination units from folded paper towels or automatic electronic modules to a mechanical pull-down roll towel system without replacing the full recessed stainless steel cabinet. It accepts universal, non-proprietary paper towel rolls to help lower facility operating costs. As an authorized Bobrick partner, Total Restroom offers the 3961-50 module with a Low Price Guarantee.

Specifications

• Model / MPN: 3961-50
• Series: Bobrick ClassicSeries®
• Type: Mechanical Touch-Free Pull-Down Module
• Overall Dimensions: 15-3/16" W × 18-1/4" H × 9-1/16" D (385 × 465 × 230 mm)
• Compatibility: For use with Bobrick B-3944, B-3961, and B-3974 combination cabinet series
• Towel Requirement: Universal, non-perforated, standard-core paper towel rolls, 8" wide, 8" diameter, up to 800 ft long
• Dispense Length: Preset to approximately 12" (300 mm) per pull
• Material: Heavy-duty 18-8, Type-304 stainless steel module frame with satin-finish exposed parts; impact-resistant internal resin mechanics
• Operation Force: Less than 5 lbs (22.2 N) pull force required to help support barrier-free accessibility guidelines
• Locking System: Equipped with a tumbler lock keyed like other standard Bobrick washroom accessories

Key Features

Field-Convertible Design
The 3961-50 allows facilities using compatible Bobrick combination units to replace the existing folded-towel or electronic dispensing module with a mechanical roll towel module without replacing the full recessed cabinet. This helps reduce downtime, remodeling work, and replacement costs.

Universal Paper Roll Compatibility
The module features a universal mechanism engineered to accept non-proprietary 8-inch wide, 8-inch diameter rolls up to 800 feet in length with standard 1-1/2" to 2" (38 to 51 mm) cores. This gives property managers more flexibility when sourcing commercial paper towel rolls.

Automatic Stub Roll Transfer
To help reduce paper waste, the unit accommodates an active stub roll up to 3-1/2" (90 mm) in diameter and is designed to use the remaining stub roll before switching to the primary roll, helping reduce run-outs and wasted paper.

Hygienic, Battery-Free Mechanical Operation
Operating entirely by physical pull force, users only touch the paper towel they intend to use. Because the dispensing action is mechanical, facilities avoid the battery replacement, wiring, and sensor maintenance associated with automatic electronic towel modules.

Installation Guidance
This module is designed for field conversion or replacement inside compatible Bobrick ClassicSeries combination units. Before installation, open the cabinet, unlock and remove the existing folded-towel or electronic dispensing module, then install the B-3961-50 mechanical roll towel module according to Bobrick’s official installation instructions. Compatible cabinet series include B-3944, B-3961, and B-3974. Refer to the Bobrick technical datasheet and installation guide for exact alignment and fastening details.

Frequently Asked Questions

Does This Module Require Batteries Or Hardwiring?
No. The B-3961-50 is a mechanical, pull-down roll towel module. It relies on user pull force to advance and cut the paper, so no electrical wiring or battery replacements are required.

Which Bobrick Cabinets Will This Module Fit Into?
The 3961-50 module is designed to fit compatible Bobrick ClassicSeries combination units, including the B-3944, B-3961, and B-3974 cabinet lines.

Does This Module Support ADA Compliance?
Yes. The internal mechanism requires less than 5 pounds (22.2 N) of pull force, helping support ADA accessibility requirements when installed in a properly mounted compatible cabinet.

Compatible Cabinets & Units

Main Multi-Function Units:

Bobrick B-3944 Recessed Towel Dispenser / Waste Receptacle Unit (12-Gallon)

Bobrick B-3961 Mechanical Roll Towel Dispenser / Waste Receptacle Unit

Bobrick B-3974 Automatic Roll Towel Dispenser / Waste Receptacle Unit