PRODUCT FEATURES Flexible Expansion Rubber bellows are used to make an end-to-end join between two ducts of the same size. Provides a good airtight seal to prohibit intake of air, humidity or dust inside joined units. Prevent access to high-voltage conductors. Withstand high internal pressure. Ensure electrical insulation between units. Allow for relative axial movement. Prevent transmission of vibrations of electrical equipment like generators etc. to the bus duct. Take care of thermal expansion and contraction of the bus duct enclosures. Provide enhanced fitment tolerance during installation of the bus duct Product Type : Rectangular Rubber Bellows with Flange