VIAIR 400P/450P-RVS Tire Inflation - What is the difference?

The VIAIR tire inflation pumps are the best on the market for RVs. They have the power required to fill up big Class A tires that go to 150 PSI, but they are also great for Class C, Vans, Trailers and anything else that needs air.
Store links for VIAIR products:
Viair 89P-RVS: mobilemusthave...
Viair 300P-RVS: mobilemusthave...
Viair 400P-RVS: mobilemusthave...
Viair 450P-RVS: mobilemusthave...

[@chuan-kangshih78]

Excellent video! Just ordered a 400P after finished watching this video. Thanks for sharing.

[@benryan9466]

Own the 450, it goes where I go, excellent quality

[@MobileMustHave]

agree!

[@VanillaGorilla502]

Would the 450p automatic be Overkill for use on a Toyota 4Runner with 285's?

[@Stanf954]

Most important differences btw the 300 and 400/450 is the capability of adding the RV Winterization kit to only the 400/450.

[@MobileMustHave]

Yes, that is a good point! Thank you!

[@derrickrees1913]

Nice video...great job! Nice rigs too!!

[@LydellAaron]

In a process of mourning since my 450 got stolen from my vehicle. Looking at getting another one, they are really nice.

[@MobileMustHave]

Oh no! That is such a huge bummer, so sorry to hear!

[@VanillaGorilla502]

Would the 450P automatic be Overkill for a 4Runner with 285's?

[@MobileMustHave]

I think the 400 would get it done for sure since it has a slighly higher fill rate but a lower duty cycle but since your tires are probably running well below 100psi the 400 would be fine overall in my opinion. If you plan to feel a fleet of cars for like a off road event or something and they are lined up for air then best to go with the 450 with its continuous duty to avoid any issues.