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    OEM Systems Pro-Wire Box Buddy & MR Series Mud Rings — Product Brochure

    September 08, 2026 2 min read

    Product brochure for OEM Systems' Pro-Wire Box Buddy low-voltage mud rings and MR Series multi-gang mud rings, including the 8-gang MR-8.

    💾 Download Original PDF
    Full text manual (for reference)

    Product brochure for OEM Systems' Pro-Wire® Box Buddy® Low Voltage Mud Rings and MR Series multi-gang mud rings — including the MR-8, an 8-gang mud ring with 1" and 2" conduit openings.

    Overview

    Pro-Wire's Box Buddy low voltage mud rings are designed to position low-voltage devices immediately next to 110VAC electrical boxes while maintaining the standard spacing needed so both 110V and low-voltage devices can be covered with a single multi-gang cover plate for an elegant appearance. Each Box Buddy mud ring is supplied with a patented pull-off alignment tool for simple, quick installation, ensuring high- and low-voltage devices are properly positioned for the cover plate.

    Pro-Wire's MR Series multi-gang mud rings are ideal for mounting a wide variety of low-voltage devices. They feature 1" and 2" conduit openings and offset flanges that allow unobstructed installation of electrical devices.

    Box Buddy Mud Ring Models

    All Box Buddy models include the pull-off alignment tool and feature offset flanges with 1" conduit openings.

    Model Configuration
    BB-11 Adds 1 low-voltage device to a 1-gang 110VAC box
    BB-21 Adds 1 low-voltage device to a 2-gang 110VAC box
    BB-12 Adds 2 low-voltage devices to a 1-gang 110VAC box
    BB-22 Adds 2 low-voltage devices to a 2-gang 110VAC box

    MR Series Multi-Gang Mud Rings

    Model Gangs Conduit Openings
    MR-21 2 Gang 1"
    MR-31 3 Gang 1"
    MR-22 2 Gang 2"
    MR-32 3 Gang 2"
    MR-421 4 Gang 1" & 2"
    MR-8 8 Gang 1" & 2"

    Related Products

    • MR-1 — Combination Speaker Locator & Single Gang Mud Ring
    • MR-CVR — Round Metal Cover Plate for the MR-1

    Manufacturer

    OEM Systems Company (Pro-Wire®)
    (775) 355-0405 • (800) 291-0561 (fax)
    www.oemsystems.com • info@oemsystems.com

    RoHS conform. CEDIA member.