Md Building 57042 Cloverleaf Aluminum Metal Sheet 24 X 36" Mill Elbow firestop or joist shield is

firestop or joist shield is installed below an open attic

Tanto tip for piercing tough materials

Selective actuation for either sequential or bump firing

Adjustable closure provides wrist support

Md Building 57042 Cloverleaf Aluminum Metal Sheet 24 X 36" Mill Elbow firestop or joist shield isEasy to cut, form and fabricate. Aluminum material will not rust or corrode. Perforated, decorative design is great for door and window security, plumbing, heating and ventilation projects, radiator heater enclosures, craft and hobby projects, room dividers, cabinet ventilation and more. Recommended for indoor or outdoor uses. Highlights Size : 24 x 36". Style : Cloverleaf. Mill finish, perforated aluminum sheet. Can be cut with tin snips. Use indoors