A system comprising: an intermediate anchor (30, 430, 1230) wherein the intermediate anchor (30, 430, 1230) includes a core (50, 450, 1250) and an encapsulation (54, 1254a) surrounding the core (50, 450, 1250); a coupler (34, 434, 1234), the coupler (34, 434, 1234) comprising: a first chuck adapted to receive an end of a first tendon, the first chuck including first external threads; a second chuck adapted to receive an end of a second tendon, the second chuck including second external threads, the second external threads having a reverse orientation relative to the first external threads; a coupler body (82, 1282) including a first end, a second end, and a passageway extending between the first end and the second end, the first end including first internal threads configured to engage the first external threads, the second end including second internal threads configured to engage the second external threads, whereby rotation of the coupler body in a first direction about the longitudinal axis of the coupler body simultaneously advances both the first chuck and the second chuck into the passageway; and a cover (94, 1294) extending along the second chuck; wherein the system further includes a cup (146, 534) covering an end surface of the first chuck, the cup (146, 534) in sealing engagement with an end of the cover; wherein the cup (146, 534) includes a planar portion that abuts an end surface of the intermediate anchor (30, 430) and the planar portion of the cup (146, 534) includes protrusions, wherein the protrusions are pressed into the encapsulation (54, 1254a) of the intermediate anchor (30, 430). an intermediate anchor (30, 430, 1230) wherein the intermediate anchor (30, 430, 1230) includes a core (50, 450, 1250) and an encapsulation (54, 1254a) surrounding the core (50, 450, 1250); a coupler (34, 434, 1234), the coupler (34, 434, 1234) comprising: a first chuck adapted to receive an end of a first tendon, the first chuck including first external threads; a second chuck adapted to receive an end of a second tendon, the second chuck including second external threads, the second external threads having a reverse orientation relative to the first external threads; a coupler body (82, 1282) including a first end, a second end, and a passageway extending between the first end and the second end, the first end including first internal threads configured to engage the first external threads, the second end including second internal threads configured to engage the second external threads, whereby rotation of the coupler body in a first direction about the longitudinal axis of the coupler body simultaneously advances both the first chuck and the second chuck into the passageway; and a cover (94, 1294) extending along the second chuck; wherein the system further includes a cup (146, 534) covering an end surface of the first chuck, the cup (146, 534) in sealing engagement with an end of the cover; wherein the cup (146, 534) includes a planar portion that abuts an end surface of the intermediate anchor (30, 430) and the planar portion of the cup (146, 534) includes protrusions, wherein the protrusions are pressed into the encapsulation (54, 1254a) of the intermediate anchor (30, 430). a first chuck adapted to receive an end of a first tendon, the first chuck including first external threads; a second chuck adapted to receive an end of a second tendon, the second chuck including second external threads, the second external threads having a reverse orientation relative to the first external threads; a coupler body (82, 1282) including a first end, a second end, and a passageway extending between the first end and the second end, the first end including first internal threads configured to engage the first external threads, the second end including second internal threads configured to engage the second external threads, whereby rotation of the coupler body in a first direction about the longitudinal axis of the coupler body simultaneously advances both the first chuck and the second chuck into the passageway; and a cover (94, 1294) extending along the second chuck; wherein the system further includes a cup (146, 534) covering an end surface of the first chuck, the cup (146, 534) in sealing engagement with an end of the cover; wherein the cup (146, 534) includes a planar portion that abuts an end surface of the intermediate anchor (30, 430) and the planar portion of the cup (146, 534) includes protrusions, wherein the protrusions are pressed into the encapsulation (54, 1254a) of the intermediate anchor (30, 430).