3M DBI-SALA Rope Lifeline — 30 ft 5/8 in with Self-Locking Snap Hook head-protection since mercury vapor doesn't reliably

since mercury vapor doesn't reliably announce itself that way

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3M DBI-SALA Rope Lifeline — 30 ft 5/8 in with Self-Locking Snap Hook head-protection since mercury vapor doesn't reliablyEDITORIAL PICK. Featured in our best vertical lifelines & rope grabs guide compare it across the vertical lifelines & rope grabs collection. The DBI SALA rope lifeline 30 ft, self locking hook A rope lifeline is the vertical line a rope grab rides on, and the 3M DBI SALA version brings two things the budget ropes do not: a self locking snap hook that cannot roll open under load, and an integral i Safe RFID tag that stores this ropes inspection