Tender For supply of over the top packers and gravel pack hardware and high strength rubber packer cups - change over 2-7by8 inch nu pin x 3-1by2 inch eue , change over 3-1by2 inch eue pin 3-1by2 in , spring centralizer 2-7by8 inch , over the top assembly 5- 1by2 inch x 2-7by8 inch , high strength packer cups