The ECP Bi-Directional Cup Tool is a simple tool often used for steam diversion, affordable packer testing and multi-zone isolation. These tools are available with optional internal burst ports, where variable disks can be installed. These disks can provide relief pressure at any desired differential rating. Available in NBR, EPDM, HSN/HNBR, VITON, AFLAS, BARRIER and other elastomers. These tools can be built to suit each and every well.