Stuffit — Copper Rodent & Insect Exclusion Filler Key benefits Durable, longlasting barrier: made with 100% Electrilytic Tough Pitch (ETP) copper for strength and longevity. Corrosion resistant: rustproof and stainproof construction maintains performance in moist or outdoor conditions. Effective pest exclusion: forms a reliable physical seal to block rodents and insects at common entry points. Compatible with building penetrations: designed to seal weepholes and gaps around plumbing, A/C lines, vents, and other openings. Lowmaintenance material: composed of quality copper with brass and other inert metals for stable, nonreactive performance. What it does for you Prevents pest entry by providing a metal barrier that rodents and insects cannot easily chew through. Protects vulnerable openings from water staining and corrosion, preserving surrounding materials and finishes. Reduces need for repeated repairs or replacements thanks to rustproof, stainproof materials. Material & performance highlights Core material: 100% Electrilytic Tough Pitch (ETP) copper. Constructed with fine ingredients including brass, copper, and other inert metals to ensure durability and nonreactive performance. Suitable for use in both indoor and outdoor conditions where longterm resistance to corrosion and staining is required. Practical applications (use scenarios) Foundation weepholes: pack Stuffit into foundation weepholes to block rodent access while maintaining a durable, noncorroding seal. Plumbing and A/C penetrations: seal the gap around pipes and conduit where they enter walls to prevent pest ingress and resist moisturerelated staining. Vents and service openings: apply around vent flanges, dryer vents, and attic access points to close small gaps that attract insects and small rodents. Why professionals choose Stuffit Built from proven materials favored in construction and exclusion work. Reliable in environments exposed to moisture, outdoor conditions, and routine building use. Simple, materialfirst solution that addresses both pest exclusion and corrosive concerns without added coatings or treatments.