Brennan Industries Inc., a leading international supplier of hydraulic fitting and adapters, now offers single-ferrule instrumentation fittings. The single-ferrule fittings are available in sizes ranging from 1/16 to 2 inches. The fittings are available in brass and 316 stainless steel. The single-ferrule fittings feature a design that makes incorrect installation difficult and makes incorrect assembly less likely because there are fewer pieces involved. The single-ferrule design is ideal for applications under high vibration or pulsation. “The single-ferrule fittings are preferred by some customers over the double-ferrule style fittings,” said Bill Jarrell, vice president of sales and marketing. “We have responded to our customers who were requesting a single-ferrule fitting.”