NPT or National Pipe Thread is common throughout the medical and industrial gas industry. 1/4″ as 1/8″ NPT are among the most common. These fittings are caste in various metals such as brass, stainless and chrome plated. NPT fittings are tapered for sealing, often without any thread sealant and are made for connections in nearly every type of service.

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Bay Corporation was founded in 1979. Our business is located in the city of Westlake, a suburb of Cleveland, Ohio. The company grew out of a need in the medical gas industry for a reliable source of quality fittings and connections. A small, privately-held company, Bay Corporation is committed to serving our customers' needs as we strive to provide a great place to work for our employees. We are dedicated to operating our business in both a professional and ethical manner.
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Superior Products is a premier manufacturer of compressed gas fittings for the industrial, medical and specialty gas industries. Manufacturing products since the mid-1940's, Superior Products has supported these industries with reliable products, innovative technologies, technical expertise, lean manufacturing and world-class customer service support.   Our sales, engineering and operations team offers over 200 combined years of experience in the compressed gas industry.
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For more than 60 years, Western has been supplying products for the control, storage and transmission of high-pressure gases to the industrial, medical and specialty gas markets–and leading the field in the ways that matter most. Western is dedicated to be the best provider of compressed gas systems and components.
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