Just got around to trying out my purchase of the 300P-RVs. It arrived quickly and packed in a shipping box. (nice job!)

Decided to dump the air out of one of my truck tires. (25 to 35 psi about 45 seconds) Now this was really purchased for the RV trailer tires (80 psi) but just wanted to test this out. Really happy with the purchase.

I did notice that the black/red battery clamps are pretty close together and you can further split the wire if you are not careful trying to reach a safe grounding point on the vehicle. I decided to add a plastic zip tie to keep the wire from splitting any further.

I will also be adding a separate pressure gauge, spare fuse and gloves to the kit so I have everything in one place. I find the inline pressure gauge is fairly accurate, when the unit is off, but I like to double check my work with a separate gauge when I am all finished.

We have a 35' 5th wheel with 215/75R17.5 sized tires that need to be at 125 psi. Getting them "topped off" when they drop to 115 psi was getting to be a pain - my little shop compressor didn't like to try and get to that pressure. This is GREAT - takes about 3 minutes each to increase from 115 psi to 125 psi. Nozzle tip attaches firmly to valve stem so you can walk away and let the pump do its thing. I debated about this and the next larger unit (and significantly more expensive), but am super pleased with our purchase and the capability of this pump.

Bought this unit from Techno RV back in the summer of 2020 after reviewing their informative videos. Had an old Viair that would barely fill my TT's tires @ 65PSI. Purchased a new F350, and no way it would fill 80PSI on my truck times. Have used in many times every since to top off the TT tires before long trips and to keep the truck tires on par as well... Love this unit. Thanks Techno RV.

JUST WHAT I WAS LOOKING FOR. THE 2.30 CFM IS GREAT FOR MY CLASS B RV WITH 19.5 TIRES

When our old 2-cylionder "heady duty" Slime pump failed, I got the green light to get the Viair. Everything about it, from the heavier battery cables to the air chucks, feels more robust and more like commercial grade than my old unit. I just used it to top off a repaired tire and it purred like a fat cat instead of screaming like a banshee. It's a single cylinder but it pumps fast enough to be able to watch the needle move, instead of have to come back every few minutes. The soft sided case appears well made and is easier to use with plenty of room and no need to cram and tuck everything just right in order to close. This is my 4th or 5th purchase from TechnoRV and they are always spot on with customer service.

Exactly the right tool at a very good price. Takes just a few minutes to setup. Very satisfied with both the product and TechnoRV.

We were looking for a good, reliable air compressor to keep in our 5th wheel and came across some great YouTube videos explaining in detail what to look for, what size is needed for what rig, etc. Those videos led us to TechnoRV so we looked around and decided this was the one we needed. This seller doesn’t try to oversell, just tries to take care of the customer and I think they do a good job.
This air compressor is amazing, too! Very well built and the kit is great, just what we were looking for.
Thank you TechRV and to Viair for making a great, quality product!

I have wanted a VIAIR for a long time and it has not disappointed. This unit is very well made, and TechnoRV made the buying process so easy. Also, the TechnoRV Learning Series made using my unit a breeze. Thanks TechnoRV!