Master Airbrush Exhaust Extension Hose Kit for Hobby Spray Booth - Hose Extends up to 5.6 Feet (67 Inches)

I was afraid to buy this because people in the reviews saying it doesn't fit so I am here to help.This is Masters Airbrush product code ‎BH405 and it is designed to work with B400DC & B420DC spray booths. The product DOES NOT come as pictured, it is black, not grey. As others have pointed out, the instructions are NOT correct and must be for an older model. It does however fit my B400DC and using this brief guide along with pictures you should be able to attach in seconds1.) In the first picture, this is the part that is going to attach to the fan on the back of your spray booth. Please note the 4 hooks as this is key to getting it to fit.2.) In the second picture, this is the back fan of the B400DC spray booth. The arrows are pointing to where the hooks need to sit for installation (only two slots showing in picture but there are 4 total). So place your 4 hooks into the 4 slots on the back of your booth.3.) Picture 3, this is what the piece looks like when it is in the slot. All 4 of your hooks should look like this before the final step.4.) Twist you piece clockwise. This may be scary at first because they are tight and there are 4 of them you need to seat but press in a little and give a good twist and you will hear all 4 snap into place which you can see with the final picture.That's it. The rest is simply setting up the other parts of the hose and you are good to go. I can't speak on if it leaks air like some are saying but that is an easy fix with some insulation from a local hardware store placed just right before attaching the piece to the back of the booth.Hope this helps

great help in booth ventilation

The product is good but instructions could be a little more clear & pictures bigger.

I have a older collapsible spray booth and i had to make a few minor changes to the clips. I had to sand them down as they were to tall to hook onto the fan cage and then back the screws of the cage out a half turn each. After all of that it clicked in very positively and hold swell. The only issue I have is that the hose does not hold really well to the rubber adapter, any movement of the hose after it is in place risks pulling it out and having to put it back in place. Overall the construction is good and it works well, just a bit of DIY to get it to fit may be necessary.

it would be nice if the hose could extend a few more feet, but it is severing its purpose right now. I will be making it longer for my use.