All Spiral Pipe and Fittings Products

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Prime manufactures rectangular fittings in most sizes and configurations. Fittings are manufactured on our state of the art fabrication equipment. All fittings are fabricated with stiffening beads on duct sizes 19” wide and larger which have more than 10 square feet of unbraced panel. Fittings shall be beaded unless duct will have an insulation covering or an acoustical liner.

This requirement is applicable to 20 gauge or less in thickness and 3” W.G. or less. Most all fittings are fabricated with Pittsburgh seams. Fittings are available completely assembled with all accessories (reinforcement, vane & rail, etc…) installed. Fittings are also available knocked down to reduce shipping and handling costs.

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