The 3M Highland™ H-30 is a professional-grade twist-on wire connector engineered for 22-16 AWG copper applications across residential, commercial, and automotive environments. Its blue color-coding enables instant wire gauge verification, while the robust vinyl shell maintains integrity at temperatures reaching 221°F (105°C). The internal spring mechanism delivers a vibration-resistant connection suitable for both solid and stranded conductors in 300V circuits. UL Listed and CSA Certified, this connector combines durable construction with proven safety compliance. Each pouch contains 100 units, providing a cost-effective solution for high-volume splicing projects requiring dependable performance and secure insulation.