Opti-Seal Butt Terminals and Seamless Step-Down Connectors are crystal-clear to offer the installer visual assurance. Made of clear cross-linked ionic polymer, Butt Connectors will ensure error free crimping and terminating of wires by preventing poor termination or improper seating to connectors. Color stripes provide alignment for tool to crimp center of barrel and indicates industry standard for a range of wire gauge sizes.
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