12 pairs (24 pieces) silicone dust caps for MC4 PV connectors. Each pair includes one long cap and one conical protective piece to cover both male and female connector ends. Key benefits Reliable protection: silicone caps shield MC4 connector ends from dust, water, and weather influences to keep contacts clean during storage, transport, and downtime. Precise fit: sized at 1.025 inches length and 0.71 inches width for compatibility with standard MC4 solar plugs, ensuring a snug, stable seal. Easy to use: tool , quick attachment to both male and female connectors speeds up installation and maintenance and helps improve conversion rates. Durable material: flexible silicone resists tearing and stays pliable across temperature changes for repeated use. What you get Box contents: 12 pairs (24 pieces) dust caps for MC4 PV connectors, each pair consisting of one long protective cap and one conical protective cap. Function and compatibility Designed specifically for standard MC4 PV connectors used in solar panel systems. Caps cover exposed connector ends to reduce contamination and moisture ingress while connectors are disconnected. Typical applications Solar array installation and commissioning: protect unused connector ends during wiring and testing. Maintenance and storage: keep connectors clean and dry during routine servicing or when panels are removed and stored. Mobile and off grid systems: protect MC4 connectors on RV, marine, and portable solar setups during travel and periods of non use. Practical notes Attach caps by hand; no tools needed. Fit is intended for standard MC4 connectors only.