A: I don't know for sure but I'll recommend you to use a conduit. Flexila is a good product though.
A: Hello, Thank you for reaching out! In order to connect two 50 foot air hoses, you would need a coupler and a plug. Please give us a call at 800-645-8258 to further discuss how you would do this, and what you would need. Thank you, Team Flexzilla
A: There is nothing in with this other than the hose
A: Hello, Thank you for reaching out! Yes, this product does come with 1/4" MNPT ends. Please give us a call with any further questions at 800-645-8258. Thank you, Team Flexzilla