Forum Discussion
Bobbo
Mar 18, 2015Explorer III
Flow through vs non
It is easier to use a gauge to check the flow through tire pressure since you don't have to remove the sender unit. For small amounts of air, you can add the air without removing the sender unit. However, the sender unit does significantly restrict the amount of air that goes through, so if you are adding a LOT of air, it is much faster to remove the sending unit. Even then, you are no worse off than you are with the non-flow through, which requires you to remove it even to check the tire pressure with a gauge.
The only real advantage I can see to the non flow through sending units is that they don't stick out quite so far from the tire so you have a lower risk of hitting a curb with them.
I have the flow through.
It is easier to use a gauge to check the flow through tire pressure since you don't have to remove the sender unit. For small amounts of air, you can add the air without removing the sender unit. However, the sender unit does significantly restrict the amount of air that goes through, so if you are adding a LOT of air, it is much faster to remove the sending unit. Even then, you are no worse off than you are with the non-flow through, which requires you to remove it even to check the tire pressure with a gauge.
The only real advantage I can see to the non flow through sending units is that they don't stick out quite so far from the tire so you have a lower risk of hitting a curb with them.
I have the flow through.
About Motorhome Group
38,756 PostsLatest Activity: Oct 02, 2025