Review on Interstate Pneumatics F7327 12 Diameter Ferrules by Kenneth Witte

I have an Eartquake air hose reel for port cargo and screwed the hose fittings through my fault. The calipers showed about 0.619 inches for the hose OD and they worked great. A retired plumber told me that white petroleum jelly helped with the install, but I just used soapy water, which did the trick. to protect the threads while I insert the hose barb. No leaks after 24 hours under pressure (valve closed but gauge fitted). I am very happy with my purchase. To edit. They work great with Anderson Metals 57001 ⅜x⅜ Hose Barb. Here at Revain I used this combination on the hose ends of an Eartquake Air Hose Reel for Port Freight.