Triveni Rubber manufactures Audio Speaker Dust Caps. Triveni Rubber is an ISO 9001:2000 registered company. Triveni Rubber supplies any kind of rubber component or specialized rubber compounds in all kinds of specialty rubbers like nitrile, epichlorohydrin, neoprene, EPDM, polyacrylic, HNBR, hypalon, viton, silicone, PVC/NBR blends, fluorosilicone, fluorocarbons etc. On a turnkey basis. Audio Speaker Dust Caps are made from a special blend of thermoplastic elastomers. Audio Speaker Dust Caps imparts a very good aging resistance and improves the life to the product. These are available in various sizes of 8",6", 4 inches. These caps are also available in butyl rubber material.