This is a Brass 3/8" Push to Connect to 1/4" Female NPT fitting.
This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
Hornblaster wrango JKU kit is awesome. Everything bolted up easily. Horns sound great and tech support was awesome. At one point I called and no one was available to take my call. I did NOT leave a message and a few minutes later I received a call from Hornblaster. Impressive, thank you very much