Can it inflate an RV tire to 110 PSI?

Yes. The 150 PSI maximum covers most RV and trailer tires, though high-pressure fills take several minutes and count against the 20-minute run limit.

Can I plug it into a 12-volt socket?

No. It draws up to 30 amps and uses a 40-amp fuse, so it should be clipped directly to a battery with heavy-gauge leads.

How long can it run at once?

The duty cycle is 33%, about 20 minutes on and 40 minutes off. Let it cool between tires on a long job.

How far does the hose reach?

The air hose is 60 feet and the power cord is 8 feet, so you can usually reach every wheel from one parking spot.

Is $245.40 a good price?

It is the best new price among the two stores listing it as of November 7, 2026, at The Home Depot. Check the price history for how it compares with earlier listings.

The compressor, its 60-foot hose and 8-foot power cord with battery clips. Check the listing for any included nozzles or carry bag.

Where is the 400P-RV Portable Tire Inflator cheapest?

At The Home Depot, for $245.40, as of our latest check.

Where can I buy the 400P-RV Portable Tire Inflator?

2 stores we checked sell it, including The Home Depot, Amazon.

400P-RV Portable Tire Inflator

Best price now

$245.40at The Home DepotObserved at 7:21 AM

Compared across 2 stores. Prices are checked against each store and labelled with when.

Visit The Home Depot

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Our take on the 400P-RV Portable Tire Inflator

The 400P-RV is a 12-volt portable air compressor built for RV, truck and trailer tires. It runs on a 13.8-volt supply, tops out at 150 PSI and draws up to 30 amps, so it needs a 40-amp fuse and a heavy-gauge connection to the battery. Its 60-foot air hose and 8-foot power cord let you reach all four corners of a big rig without moving it. The best new price is $245.40 at The Home Depot as of November 7, 2026, with two stores listing it new.