Worked great for my QMaxx Purchased from Costco many years ago. My original hose disintegrated after 8 years. I broke the head attempting to remove the "nItto" connector so I could use a better hose. I was not about to pay $20 for the replacement that never worked right anyway. Found it was cheaper to replace the head than buy better compressor.
The picture shows the head only. The one I received had Milton M style plug and (wildly inaccurate) pressure gauge attached. I also received 4 head bolts. I was afraid to remove the plug as the last was cemented into place. Normally the receptacle end goes on the pressure side, but these pumps do not handle being dead headed. I replaced the hose with a 25' Milton ReKoil and clip on schrader chuck without valve (to prevent dead heading). The hose with fittings fits into the OEM bag. The plastic clips broke off the OEM bag years ago.
On a side note the compressor would blow its 30A fuse when started against any pressure. I shot a small amount of silicone lube into the cylinder and now it starts normally with pressure (tested to 35 psi). There could have been other reasons for the blown fuse, but it works OK now.
Overall, the picture or description should list the contents/ configuration. I'm not impressed by the corners cut or prices of replacement parts.