Middle Atlantic 881RC4ATCBK Ratchet-Pro Floor Box Cover Kit
Overview
The Middle Atlantic 881RC4ATCBK is the black cover kit for the 881RC4AT Ratchet-Pro 881 Series multiple-service floor box — the finish piece that converts a rough-in concrete floor box installation into a clean, professional surface. At 8.25" × 8.25" with a 3.75" profile, it fits squarely over the 881 Series rough-in without additional adapters. If you're specifying a Middle Atlantic floor box deployment for a boardroom, training facility, or AV integration project and the finish color is black, this is the cover assembly you need to complete the installation.
TAA compliance is verified for this SKU, making the 881RC4ATCBK a straightforward choice for GSA schedule projects and federal or state/local government facilities where Trade Agreements Act sourcing is a procurement requirement.
Key Features
- 8.25" × 8.25" footprint (21 cm × 21 cm): sized specifically for the 881 Series rough-in box — no field modification needed to achieve a flush, finished look on a concrete floor installation.
- 3.75" height (9.5 cm): low-profile above-floor presence keeps the cover from becoming a trip hazard in high-traffic presentation spaces, boardrooms, or classrooms.
- Black finish: matches dark-flooring environments and standard AV infrastructure color schemes where a black surface plate blends rather than draws attention — relevant in tiered lecture halls and corporate conference rooms.
- TAA Compliant: this SKU meets Trade Agreements Act requirements, meaning it qualifies for GSA schedule and government contract purchasing without additional sourcing documentation.
- Ratchet-Pro cover mechanism: the ratchet activation system allows the cover to open and close positively without requiring tools in the field — useful in spaces where the floor box is accessed repeatedly by non-technical end users.
Integration & Compatibility
The 881RC4ATCBK cover kit is designed for use with the Middle Atlantic 881RC4AT rough-in floor box. Confirm your rough-in box model before ordering — this cover is specific to the 881 Series multiple-service layout. If you are deploying the rough-in box and cover together, the 881RC4AT paired with this kit forms a complete AV infrastructure floor box solution ready for concrete installation. For projects requiring a different finish color, verify the equivalent non-BK suffix variant against your specification drawings.
Frequently Asked Questions
Q: Is the 881RC4ATCBK TAA compliant?
A: Yes. This SKU is verified TAA compliant, making it eligible for GSA schedule and government contract procurement.
Q: What are the dimensions of the 881RC4ATCBK?
A: The cover kit measures 8.25 inches wide × 8.25 inches deep × 3.75 inches in height (21 cm × 21 cm × 9.5 cm).
Q: What rough-in box does the 881RC4ATCBK cover fit?
A: The 881RC4ATCBK is the cover kit for the Middle Atlantic 881RC4AT Ratchet-Pro 881 Series multiple-service floor box. Confirm the rough-in model number matches before ordering.
Q: Why does the BK suffix matter on this model number?
A: The BK suffix designates the black finish color. If your project specification calls for a different finish, verify the correct suffix variant against the 881RC4AT series lineup before purchasing.
The 881RC4ATCBK is the detail that separates a finished AV installation from a rough-in left incomplete. At 8.25" square with a 3.75" above-floor profile, this black cover kit snaps the 881 Series deployment together — and its verified TAA compliance means I can spec it into government and higher-ed projects without a sourcing exception conversation.
Technical Highlights:
- 8.25" × 8.25" footprint: matches the 881RC4AT rough-in exactly — no field cutting or adapter plates required to achieve a flush finish on a poured concrete floor.
- 3.75" profile height: keeps the above-floor presence minimal in high-traffic spaces — a real consideration in lecture halls and conference rooms where floor boxes are ADA and trip-hazard concerns.
- TAA Compliant (verified): this SKU qualifies under the Trade Agreements Act — relevant for any state, local, or federal project on GSA schedule where country-of-origin documentation is required at procurement.
Deployment Considerations:
- Always confirm the rough-in box model is 881RC4AT before ordering this cover — the 881 Series has multiple configurations and the cover is not universal across the full Middle Atlantic floor box lineup.
- The BK suffix is finish-specific; if the project specification calls for a different color, source the correct suffix variant early — substituting at closeout when the concrete is already poured is a coordination problem you don't want.
The 881RC4ATCBK is the right finish piece for corporate boardroom, government facility, and higher-education AV builds using the 881RC4AT rough-in — specifically where black finish and TAA compliance are both hard requirements on the specification sheet.
