---
title: RACO Expands Plenum Electrical Box Line
description: Airtight Plenum Boxes - Solutions for Above Ceiling Applications
---

[RACO Blog ](https://blog.hubbell.com/en/raco)

# [RACO Expands Plenum Electrical Box Line](https://blog.hubbell.com/en/raco/raco-expands-plenum-electrical-box-line)

 Written by [Hubbell RACO](https://blog.hubbell.com/en/raco/author/hubbell-raco) | Dec 21, 2020 5:00:00 AM

[Airtight Plenum Boxes  
Solutions for Above Ceiling Applications](https://hubbellcdn.com/ohwassets/HCI/RACO/Literature/RA-446_SEL_PLNM_Boxes.pdf)

***Features***:  
• 4″ square, 4-11/16″ square and 4″ octagon models  
• Covers gasketed with PVC foam material  
• Airtight knockouts  
• To maintain plenum seal, boxes do not have ground  
screw holes  
• Drawn steel construction

 

Maintain code-compliance in plenum areas with RACO’s airtight Plenum boxes. Gasketed covers and leak-free KO’s meet the most rigid code requirements

[View full post](https://blog.hubbell.com/en/raco/raco-expands-plenum-electrical-box-line)

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