1-7/8" x 1-7/8" Telescoping Channel 10 ft. - Pre-GalvanizedNote: This listing is for the larger 1 7 8" strut channel, designed to allow standard 1 5 8" strut channels to telescope inside. The standard size strut channel must be purchased separately. The 1 7 8" x 1 7 8" Telescoping Channel 10 ft. Pre Galvanized is a versatile and durable component designed for various structural and support applications. It's ideal for creating frameworks, securing systems, and providing support for electrical, plumbing, and