Video Transcript for Review of Roadmaster Tow Bar Braking System Parts - Replacement Check Valve - RM-452141

Hey everyone. I'm Ellen here at etrailer.com. Today we're taking a quick look at the replacement vacuum check valve. This is going to be the important component to make sure you don't have a back feed of air from one side into the other for your supplemental braking system from Roadmaster. It's going to fit the InvisiBrake and this is going to be for your second vehicle kit. So the diameter that this will fit is going to be a 3/8 inch, so it's going to be the smaller of the check valves that you normally get with that kit.

As far as the overall length, it's about roughly an inch and three quarter.Again, it's going to fit a 3/8 inch diameter. The outer portion is about three quarters of an inch. That's just this portion here. It does have a little arrow, so it's pointing that way or towards the black side, so that's the direction that our air is going to flow so it can't come back towards the clear side. So you want to make sure to check your instructions for which direction that check valve needs to go.

It's very important that the air is flowing in the proper direction so that everything's functioning properly.But that's pretty much all there is to it for our replacement vacuum check valve. If you need the half inch, we also have that available here at etrailer.com. That part number is going to be RM-452142.If you need any other replacement parts, we do have those available as well, so definitely check them out if you need them. Thanks for watching and we'll see you next time.