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Wide (Inside) X 4 Ft. Aluminum Trim Channel – Heavy Duty. Available in various sizes and materials. Popular materials include aluminum and plain steel. Material Aluminum. Aluminum provides superior protection against corrosion.

Wide (Inside) X 4 Ft. Aluminum Trim Channel – Heavy Duty. Available in various sizes and materials. Popular materials include aluminum and plain steel. Material Aluminum. Aluminum provides superior protection against corrosion.