The RTTS packer is a hookwall packer used for testing, treating, and squeeze operations. The packer body includes an upper and lower packer with spacer tubing and an integral bypass and ball seat. The lower packer incorporates a J-slot mechanism, mechanical slips, packer elements, and a bypass. Large, heavy duty slips in the hydraulic holddown mechanism are contained in the upper packer to help prevent the tool from being pumped up the hole. Drag blocks operate the J-slot and automatic J-slot sleeves are standard equipment on RTTS packer bodies.