100% Silicone-based sealant protects against moisture and corrosionUL Listed to 486G Sealed Twist-On Wire Connector for use in damp/wet locations or above-grade applicationsEasy to apply, pre-filled twist-on wire connectorsSwept wing design is built for comfort and efficiencyEliminates the need for heat-shrink or excessive tapingTough, UL 94V-2 flame-retardant shell rated at 105C (221F)Models 61 and 63 approved for bonding and grounding applicationsFor use in damp/wet location or above-grade applicationsConnected and protected.Designed specifically for above-grade, interior or exterior connections exposed to damp, wet or corrosive environments, WeatherProof Wire Connectors are the perfect twist-on solution for connections that require protection from the elements. The swept-wing design makes the connector easy and comfortable to apply, while the pre-filled, silicone-based sealant protects against moisture and corrosion, eliminating the need for heat-shrink or excessive taping.WeatherProof Wire Connectors feature tough, flame-retardant shells that withstand most rugged environmental extremes and are listed to UL 486D for use in damp or wet locations that are above ground.Due to the pre-filled silicone sealant, WeatherProof Wire Connectors are designed as a one-use only connection.Not for use in continual submersion applications.