Products   Services   Certification   Catalogue   Contact us       New Products Range                       Plenum Boxes       Plenum boxes with Spigot Connection for Flexible duct       Plenum or Mixing boxes are available for all diffusers and grilles with insulation and without insulation.         Copyright © 2009 Ravistar All rights reserved. Products | Services | Certification | Catalogue | Contact us About us | Technical know-how | Manufacturing | Testimonials Powered by  Initiative Technologies