Cap for pressure control in one CX 100 vessel (Reference vessel) contents: 1 piece cap made of TFM with sensor element replaces 819-5004760-0 The new CX100 caps also require a new tool kit to disassemble and assemble -greater than 419-10000013-0! If required, please order separately. Cap for pressure control in one CX 100 vessel (Reference vessel) contents: 1 piece cap made of TFM with sensor element replaces 819-5004760-0 The new CX100 caps also require a new tool kit to disassemble and assemble -greater than 419-10000013-0! If required, please order separately.