It's designed to use a compression fitting. BUT, you can ditch that nut and ferrule (olive) and use it as a 3/8-to- Use 3/8 extension, deducting one star because mine came without a tip (nut rolled along bottom of box) It would have been a throwback if I hadn't used it as an extension.
Men'S Heated Jacket: PROSmart Waterproof With Hood And 12Volt Battery Pack - Black
24 Review
Unclog With Ease: Flexible Toilet Grabber Tool With 4 Jaws And Stainless Steel Pole
41 Review
Adult Shooting Ear Protection Earmuffs - Noise Cancelling Safety Ear Muffs For Hearing Reduction
26 Review
Soundproof Ear Muffs For Shooting - Adult Hearing Protection Earmuffs For Noise Cancellation And Safety
30 Review