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 Portable Compressor - 30033

Product ID: 244885031

Details

Brand
Viair
Capacity
2.3 cubic feet
Item Weight
3.95 kg
Maximum Power
414 Watts
Noise Level
73 Decibels
Power Source
Corded

⚡12V Power Boost

💨2.40 CFM Airflow

🔧150 PSI Max Pressure

₹ 24267

Duties & taxes included

In stock

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Description

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

RAPID 2 40 CFM AIRFLOW - Inflate up to 33-inch tires quickly with high-volume air delivery.
POWERFUL 12 V PERFORMANCE - Plug directly into your vehicle battery for instant, reliable inflation anywhere.
COMPACT PORTABLE DESIGN - Lightweight 3.95 kg aluminum build with a 25 ft hose for ultimate on-the-go convenience.
DURABLE HEAVY DUTY CLAMPS - Secure 40-amp inline fuse dual battery clamps ensure safe, stable power connection.
PRECISION 5 IN 1 PRESSURE GAUGE - Monitor and adjust tire pressure with an integrated inflator/deflator gauge.

The VIAIR 300P Portable Compressor delivers robust 12V power with a max 150 PSI pressure and 2.40 CFM airflow, designed to effortlessly inflate large tires up to 33 inches. Featuring a 5-in-1 inflator/deflator gauge and heavy-duty battery clamps with a 40-amp fuse, it combines precision, durability, and portability in a lightweight aluminum frame. Perfect for professionals and adventurers who demand reliable tire inflation on the move.

Specifications

ASIN	B000X90YUO
Additional Features	Amp Draw: 28 amps, Compressor: Light Duty, Dimensions: Viair 30033 Dimensions., Duty Cycle: 33 percent, Max PSI: 150, Performance Data: Viair 30033 Performance and Tire Fill Rate data.
Air Flow Capacity	68.36 Liters Per Minute
Best Sellers Rank	#527,198 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #502 in Portable Air Compressors
Brand Name	Viair
Capacity	2.3 cubic feet
Colour	silver
Country of Publication	USA
Customer Reviews	4.7 4.7 out of 5 stars (2,390)
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 Type Name	300p Portable Air Compressor
Item Weight	3.95 kg
Manufacturer	Viair
Manufacturer Part Number	30033
Manufacturer Warranty Description	All VIAIR products come with a One Year Manufacturer Defect Warranty
Maximum Power	414 Watts
Maximum Pressure	150
Metal Type	Aluminum
Model Name	Viair
Model Number	30033
Noise	73 Decibels
Number of Items	1
Number of Packs	1
Power Source	Corded Electric
Recommended Uses For Product	Tire Inflation
Style	Portable
UPC	818114003004
Unit Count	1 Count
Voltage	12 Volts

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