Penflex is a leading manufacturer of corrugated and interlocked metal hose, braid products, and stainless steel metal bellows and expansion joints. Founded in 1902, we have been a pioneer from the very beginning and continue today to be a leader in the design and manufacture of flexible metal hose and bellows. Our hoses are known for their durability and superior corrosion resistance, and are used in more than 15 vertical markets, by hundreds of companies.