About Us



In the mid 1940’s Cullen Crawford developed and patented the original flareless fitting (nut and double ferrule system), making it easier and more efficient to make tubing connections. Based on this innovation, he founded the Crawford Fittings Company, creating an industry for compression fittings.


Well-known throughout the fitting industry, Mr. Crawford founded Tylok International, Inc. in the late 1950’s. Tylok presently offers CBC-Lok double ferrule tube fittings and CS-Lok single ferrule tube fittings, both of which are interchangeable with industry standard designs. Tylok products adhere to the highest quality standards and all Tylok fittings are proudly manufactured in the USA.



At Tylok, Total customer satisfaction with both products and services from the inception of an order to the delivery and use or out products is of the upmost importance to our company goals. Having knowledgeable staff readily available to answer questions and respond to inquiries in a timely manner in order to create an excellent customer service experience. The Tylok engineering staff strives to expand our brand to offer a broad range of products at competitive proces. Tylok engineers take every opportunity to turn customer ideas and concerns into concepts and viable solutions.