does the hose it comes with attach to the tire either screw on or other?

This Compressor set up comes with everything you need and the hose comes with an air chuck on it..and attachments forairing up air matress, balls, etc. if your going to air up all tires if you let the air out for being in sand give it some time to cooloff inbetween each tire, it does a great job! its not a shop compressor with a big air tank but it is faster than most portable units. its been a great tool to have since I go way out on hunts in the boonies and helped out a few stranded peopleand had a tire plug kit handy as well. good way to earn some 12 packs!

Can the psi be controlled to a constant 40psi in order to blow out RV water lines for winterization?

With an external regulator, yes. Google RV Geeks Winterizing and go to t=40 seconds to see their solution when using a 150 PSI Viair compressor to blow out their RV water lines. (Sorry, Amazon won't let me post the link here).

It states it has a 1 year warranty! Yet, no returns. How does the warranty work?

I don't know. It's the seller's policy. You are allowed to email the seller to get the details. Keep clicking on the seller's product section to find the contact link. BTW, this is a heavy duty pump. I had a tire with about 30# and within seconds, it got up to 36#. I recommend the VIAIR 300P.

I need to 'top off' my rv tires up to 125 psi. from anyone with experience... will this compressor work? if you don't know, please don't answer.

Hello, We recommend the 400P-Auto or 400P-RV since the 300P's gauge will only show up to 100psi. Let us know if you have any other questions. Thanks, Viair Corp.

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VIAIR 300P - 30033 Tire Inflator Portable Offroad Air Compressor for Truck & SUV, 12V On/Off Road Tire Pump Air Compressor Portable Heavy Duty 150 PSI

VIAIR 300P - 30033 Tire Inflator Portable Offroad Air Compressor for Truck & SUV, 12V On/Off Road Tire Pump Air Compressor Portable Heavy Duty 150 PSI

Product ID: 2150430

Details

Brand
VIAIR
Noise Level
73 Decibels
Power Source
Battery
Recommended Uses For Product
Tire Inflation
Voltage
12 Volts

⚡12V power source for on-the-go use

💨2.3 CFM airflow for rapid inflation

📏Inflates tires up to 33" diameter

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VT73977

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Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
VIAIR
Noise Level
73 Decibels
Power Source
Battery

Description

🚙 Inflate your adventure—never get stranded again!

FITS BIG WHEELS - Designed for trucks, SUVs, and jeeps with tires up to 33" diameter—no tire too tough.
PACK GO READY - Deluxe dual-compartment carry bag keeps your compressor and accessories organized and travel-ready.
POWER UP ANYWHERE - 12V direct battery connection ensures reliable inflation wherever you roam.
RAPID TIRE RESCUE - 2.3 CFM airflow pumps your tires fast—get back on the road in minutes, not hours.
PRECISION PRESSURE CONTROL - 5-in-1 inflator/deflator gauge lets you dial in perfect PSI every time, avoiding over or under inflation.

The VIAIR 300P Portable Air Compressor is a heavy-duty 12V tire inflator delivering up to 150 PSI with a 2.3 CFM airflow capacity. Compact yet powerful, it inflates tires up to 33" diameter, perfect for trucks, SUVs, and off-road vehicles. Featuring a 5-in-1 pressure gauge and a deluxe carry bag, it offers fast, precise inflation on the go, ensuring you're always prepared for tire emergencies.

Specifications

ASIN	B000X90YUO
Additional Features	Compact design with fast tire fills
Air Flow Capacity	2.3 Cubic Feet Per Minute
Best Sellers Rank	#41,274 in Automotive ( See Top 100 in Automotive ) #237 in Wheel & Tire Air Compressors & Inflators
Brand	VIAIR
Brand Name	VIAIR
Capacity	2.3 Cubic Feet
Color	Silver
Customer Reviews	4.7 out of 5 stars 2,508 Reviews
Global Trade Identification Number	00818114003004
Hose Length	25 Feet
Included Components	25ft 5-in-1 Inflator/Deflator Air Hose with Inline 100 PSI Gauge, Deluxe carry bag anti-vibration tray and more.Air Hose Length: 25 ft.Power Cord Length: 8 ft
Item Dimensions L x W x H	9"L x 4.9"W x 7.5"H
Item Type Name	Portable Air Compressor
Item Weight	8.7 Pounds
Manufacturer	Viair Corporation
Manufacturer Part Number	30033
Manufacturer Warranty Description	All VIAIR products come with a One Year Manufacturer Defect Warranty
Material Type	Aluminum
Maximum Current	30 Amps
Maximum Horsepower	0.55 Horsepower
Maximum Power	414 Watts
Maximum Pressure	150 Pound per Square Inch
Metal Type	Aluminum
Model Name	300P Portable Compressor Kit
Model Number	30033
Noise	73 Decibels
Noise Level	73 Decibels
Part Interchange Info	30033
Power Source	Battery Powered
Recommended Uses For Product	Tire Inflation
Special Feature	Compact design with fast tire fills
Style	Air Compressor Kit
Tank Volume	6.9 Cubic Feet
UPC	818114003004
Unit Count	1.0 Count
Voltage	12 Volts

Reviews

D**.

5.08.2021

R**T

1.03.2025

J**S

1.04.2026

C**.

29.12.2012

D**S

8.01.2026

D**I

5.12.2025

D**K

24.12.2025

A**E

3.03.2024

K**5

17.06.2024

G**K

9.12.2021

J**L

28.02.2026

M**E

25.02.2026

H**R

14.11.2024

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VT73977

Duties & taxes included

In stock

Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vanuatu.

Secure transaction

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