Health Care Logistics Luer Lock Connector Luer Lock To Luer Lock (696502_PK) 10/PKSterile luer lock to luer lock connectors are used for the same applications as luer lock to luer slip but provide secure locking connections on both ends. Use for filling luer syringes from repeating syringes or pump tube sets. Provides secure locking connections on both ends Luer lock connectors are packed sterilely 10 to a package.