VIAIR 444C Dual Air Compressor for Air Suspension (2 Pack) 12V Continuous Duty Cycle Compressor for Air Tanks, Bags & Air Horns 200 PSI (Chrome)

Awesome product. Both work great.

Had to replace my old 444c's after five years..the new ones are excellent I forgot how fast a good set fills up the tank

I bought this two pack because I was going g to put on board air on both my Jeep and my Wife's. They work well. We fabled up our own kit with other pieces and parts from here as well and everything works well.These compressors have good output for their size. I'm only running a 90/120 PSI switch with a small tank. It will run tools with some charge up time if you have a bigger tank, like over 2.5 gallon.

Viair, enough said! My compressor went out so I switch to a dual compressor system. This is the only way to go! Quick to build pressure and fill a 5 gallon holding tank.

Works Great

Product looks great but hopefully it works great. Poor packaging material (foam). Needs better protective foam or padding.

I did a real-world bench test on the pair I received prior to refabricating the wires and mounting them.Power was provided by three Group 31s batteries and a 110-555 160-amp Leece-Neville with the engine idling at 1600-rpm, so plenty of juice.Unit #1 filled an 8-1/2 Gallon portable air tank (plumbed straight into the tank) to 125-PSI in 10 minutes --- 150-PSI in 13m15s; my gauge maxed at 160 so I cannot attest to what happens above that.Unit #2 - 130-PSI in 10 minutes --- 150-PSI in 12m30sSo, there is variance from one unit to the next.The body of both units was cool to the touch after each test and the motors had not slowed in the least at 150-PSI, so I have no doubts that 200-PSI is easily achievable.I like the compressors and am well pleased with them.What I don't like:One of my units was assembled in a twist and rocks on the bench like a chair with a short leg; I could see no non-invasive means of correcting this, so the high leg has two 1/4-inch flat washer shims to make it sit level.This should never have gotten past quality control.They have changed it since I ordered, but the item description, the included instructions, and many of the reviews I read led me to believe that I was to get two lengths of hose for remote mounting the air filters = I did not receive these hoses and when I made mention of it I got the run-around and no hoses.In this day and age of UPS truck follower- bandits, I can fully understand why signing for delivery was required and can respect that; however, I was not previously made aware of that fact and I just by chance happened to meet the UPS man coming out my lane; had I been a few seconds later, I would not have received my compressors that day and the UPS man would have wasted his trip; had I have known a signature was necessary, I would have made arrangements to be there.The mounting screws are tiny; and, the design of the mounts does not lend itself to enlarging the holes and using more suitable bolts.The provided screws are not stainless; this should have been a given on a shiny chrome compressor.The wires exit the unit with no flex-guards nor other means of protection and will soon have the insulation cracked right where the wires exit the unit; I fabricated my own flex-guards.The insulation on the wires did not give me much confidence and is more akin to something on a cheap oriental product.Instead of a good two-wire pigtail connector, a wimpy female spade is what is provided.Considering that the compressors are shiny chrome and the attached air-hose is an impressive braided stainless affair, the two wires just poking out the end of the unit looks cheap and cheapens the appearance of the whole assembly; at the least, these wires should have been in an insulated jacket as a single cable, complete with flex-guard; and better yet, should have been inside a flexible stainless conduit; doing so should not have added any more than ten bucks or so to the cost and it is not like VIAIR is in a price war or has any competitors.One of these units replaced an elcheapo unit that would not inflate a beach ball; it is plumbed into a five-gallon tank that was already there and in use.It is nice to finally have a compressor on my truck that will stand and deliver; and, by all indications, should continue to do so.The second unit I intend to use as a portable until such time as I take a wild hair to either double-mount it on my truck, or install it on one of the other trucks I have.A single of these is more than sufficient to keep a ten or so gallon tank pressurized for occasionally blowing the horns, blowing dirt out of something, and topping off the occasional low or flat tire.I cannot attest as to longevity on the units I received; we will let that ride on the coat-tails of VIAIR's well-deserved reputation.I am very pleased and impressed with my compressors; but, the cons I mentioned need be addressed for something so close to perfect as this.