Condux International 3" Quick Double Conduit Seal-Off for blowing projectiles and line carriers through duct using an external air compressor. The Seal-Off Control Valve Body and Seal-Off Heads are sold separately. Its robust construction ensures a long-lasting and reliable seal. With Condux International's 3" Quick Double Conduit Seal-Off, you can rest assured that the job will be done quickly and effectively.
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