I am totally confused ... Is this product a 33% duty cycle or 100%? Why does it list both specsm

There are two different models.....400P-RV runs at 33% duty cycle (The 400P-RV can only run continuously at 100 psi for 20 mins before needing to cool down.) The 450P-RV has a duty cycle of 100% (The 450P-RV is a slower filling compressor, due to the lower CFM, but it can be run continuously at 100 psi for up to an hour before needing to cool down.)

Viair website shows part number for this item as 45057 and this listing show the part number as 45053. which is it?

45057 is only available through RV dealers like united RV, technorv.com or bob hurley rv. This listing is for 45053

What is tbe difference betweet the 45053 and the 45043? Just the rv kit or the compressor its self?

Zack, The compressors are essentially the same. The RV version has extra attachments that help when filling motor-home tires: a 45 degree chuck, a 90 degree chuck and an additional 30ft of air hose. Let us know if you have any other question. VIAIR Corporation

If i already have the 440p can i purchase the rv accessories separately?

No, unfortunately the 440P has a different size attachments and it is NOT an automatic compressor.Thank you

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Description

🚗 Inflate Like a Pro, Wherever the Road Takes You!

CONTINUOUS DUTY CYCLE - 100% duty cycle lets you inflate multiple tires without overheating or downtime.
VERSATILE COMPATIBILITY - Designed for Class A RVs, trucks, Jeeps, and SUVs up to 42" tire diameter—your all-in-one road trip essential.
EFFORTLESS AUTO SHUT OFF - Built-in pressure sensor stops inflation at the perfect PSI—no guesswork, no overinflation.
TRAVEL READY PORTABILITY - Comes with a deluxe carry bag for easy storage and quick access—never get stranded again.
POWERFUL 150 PSI INFLATION - Rapidly inflate even the largest RV and truck tires with professional-grade pressure.

The VIAIR 450P-RV is a robust 12V portable air compressor delivering up to 150 PSI with a 1.8 CFM airflow, perfect for inflating large RV, truck, Jeep, and SUV tires. Featuring an automatic pressure cut-off sensor and a 100% duty cycle, it ensures fast, precise inflation without overheating. Packaged with a heavy-duty carry bag, this silver alloy steel compressor is your ultimate roadside companion for peace of mind on every journey.

Specifications

Brand	VIAIR
Voltage	12 Volts
Recommended Uses For Product	Tire Inflation
Power Source	Battery Powered
Noise Level	69 dB
Special Feature	Heavy Duty, Portable
Included Components	450P-RV Automatic Portable Compressor Kit (12V, 100% Duty, 150 PSI)
Item Weight	13.1 Pounds
Maximum Power	318 Watts
Capacity	1.8 Cubic Feet
Color	Silver
Material	Alloy Steel
Product Dimensions	12.4"L x 5.8"W x 7.5"H
Style	Original Portable
AC Adapter Current	23 Amps
Air Flow Capacity	1.8 Cubic Feet Per Minute
Compatible Hose Diameter	0.11 Inches
Model Name	450P-RV Automatic Portable Compressor Kit (12V, 100% Duty, 150 PSI)
Hose Length	60 Feet
Maximum Operating Pressure	150
Manufacturer	Viair
UPC	818114004575
Global Trade Identification Number	00818114004575
Part Number	45053
Item Weight	13.05 pounds
Item model number	45053
Is Discontinued By Manufacturer	No
Item Package Quantity	1
Special Features	Heavy Duty, Portable
Batteries Included?	No
Batteries Required?	No
Warranty Description	1 year manufacturer defect warranty, VIAIR Corporation warrants this product to the end-user, when properly installed and under normal conditions of use, to be free from defects in workmanship and materials for a period of one year from the provided date of purchase for the original purchaser of the product. This warranty does not cover abuse, operation in a manner inconsistent with the product’s design, or damage resulting from exposure to the elements. If the defect is considered “under warranty”, VIAIR will, at its option, repair or replace the product free of charge to the person who purchased the product.

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