RTTS Packer The RTTS Packer is a mechanical set type packer incorporating mechanical slips which extend out from the packer body and engage the inner wall of the casing and allow the packer body to support the weight of the (DST& treating& TCP and squeeze cement) string which in turn expands the rubber packer elements to seal against the wall of the casing. Benefits: ⬇️ 1️⃣ Full opening design of the packer mandrel bore allows large volume of fluid to pump through the tool. 2️⃣ Tubing-type guns