The STINGER 1/4" X 1/4" Swivel is one of the most durable swivels available today. The Stainless Steel case with stainless steel core makes it lightweight but also extremely durable. Swivel has 1/4" female inlet on the top and a 1/4" male outlet on the bottom Operating Limits 100-300 RPM 250-5000 PSI 3-6 GPM 33-210F WARNING : This product can expose you to chemicals including Cobalt and Titanium Dioxide, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov .