VIAIR 450P-RV EF Enhanced Flow: 150 PSI Portable RV Tire Inflator

The VIAIR 450P-RV EF Enhanced Flow is a compact, 12V portable air compressor designed for RVs, trailers, and everyday vehicles. Building on the original, this model delivers a faster fill rate and improved performance while remaining easy to store in an outdoor compartment or garage shelf.

Powering up is straightforward: a pre-installed 7-pin SAE connector, connect to the battery, switch on, and inflate with the inflator gun trigger. The unit pressurizes up to 150 PSI and automatically shuts off when you reach your target. The built-in gauge helps you monitor pressure as you fill, so you can fine-tune your tire setup with confidence.

Portability is a standout feature. At 12.4 inches long and about 13 pounds, it fits neatly in a carrying case with a top handle, keeping hoses, gauges, and tips organized for quick use on the road, at a campground, or in a driveway when vacation plans call for a detour.

In real-world use, this system is designed to handle high-pressure needs for RV tires and dual rear wheels, with a 45-degree extended reach inflation gun and a 40-inch 90-degree twist-on chuck that give you flexibility around vehicles and obstacles. An IP54 rating adds dust and water spray resistance, so you can rely on performance in varied environments. The 2.19 CFM free flow and a 100% duty cycle at 100 PSI contribute to steady, dependable operation as you top off tires during long trips.

Think about a typical road day: you might start with a tire around 80 PSI and bring it up to the safe range in a couple of minutes, then move on to the next tire with the same ease. When you’re done, the entire unit and its accessories tuck away in the carrying bag, ready for the next leg of your journey.

Key benefits at a glance

• Portable automatic compressor for RVs, trailers, SUVs, and trucks up to 150 PSI
• 10% faster fill rate and 20% higher performance than earlier models
• Pre-installed SAE connector and versatile power options including a 7-way trailer plug
• Gas-station style inflation gun with a 160 PSI gauge and extended reach chuck

What’s included

• Inflation gun with 160 PSI gauge and 45-degree extended reach chuck
• 40-inch 90-degree twist-on chuck
• 25-foot and 30-foot coiled air hoses
• 8-foot power cord
• Heavy-duty carrying bag
• Three inflation tips and a Presta valve adapter for bikes