Viair 300P Portable Compressor is a mid-range portable compressor kit capable of inflating up to 31 inch tires by simply clamping the power leads to the battery terminal, connecting the lever style tire chuck to the tire valve stem and turning the unit on. Tire pressure can be monitored using the 5-in-1 inflator/deflator inline pressure gauge. Always turn off the unit to take an accurate pressure reading. Has a 33 percent duty cycle, 150 PSI maximum working pressure compressor. VIAIR’s 300P is a larger portable compressor kit with a 150 PSI rating that is capable of inflating up to 33-inch tires easily by simply clamping the power leads to your battery, connecting the tire chuck to the valve stem and turning the unit on. Tire pressure can be monitored using the 5-in-1 inflator/deflator inline pressure gauge. This compression system includes a range of accessories stowable in its soft carry case, including inflation tips, a 5-in-1 inflator/deflator open ended air hose with 100 PSI gauge, dual heavy duty direct battery clamps and more. .caption { font-family: Verdana, Helvetica neue, Arial, serif; font-size: 10px; font-weight: bold; font-style: italic; } ul.indent { list-style: inside disc; text-indent: -15px; } table.callout { font-family: verdana; font-size: 11px; line-height: 1. 3em; } td.vgoverview { height: 125px; background: #9DC4D8 url(https://images-na.ssl-images-amazon.com/images/G/01/electronics/detail-page/callout-bg.png) repeat-x; border-left: 1px solid #999999; border-right: 1px solid #999999; padding-left: 20px; padding-right: 20px; padding-bottom: 10px; width: 250px; font-family: verdana; font-size: 12px; }

Powerful Portable Compression Rated for 33″ Tires
The VIAIR 300P Portable Compressor offers inflation of up to 33-inch tires at a rapid rate, and operation at up to 150 PSI for up to 15 continuous minutes at a time, providing that there are 30 minutes provided afterwards for the unit to cool sufficiently. The unit is powered by an easy to establish temporary connection to a 12-volt battery power source via included alligator clamps. The 300P comes with an open-ended tire inflation hose with included 100 PSI air pressure gauge that offers the following functions: air up, air up intermittently, air down, air down intermittently and check tire pressure. To check tire pressure, simply turn off the portable compressor to halt inflation and check the pressure on the air pressure gauge. Additional parts provided include an inline fuse holder, a 8′ power cable, a heavy duty sand tray with vibration isolators and deluxe carry bag.

Portable air compression up to 150 PSI suitable for tires up to 33″.
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All your portable compression needs are in the bag.
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Heavy duty tray included for vibration control.
View larger. 300P Air Compressor Specifications Motor voltage – 12 volt Motor type – Permanent magnetic Max. duty cycle: 33% @ 100 PSI Max. working pressure – 150 PSI Max. Amp draw – 28 Amps Continuous use @ 72°F & 30 PSI – 40 min Max. ambient temperature – 158°F Min. ambient temperature – -40°F CFM @ 0 PSI – 2.40 Fuse – 40 Amps Inline pressure gauge – 100 PSI Auto. Reset thermal protection – Yes Dimensions – 9.80″L x 4.90″W x 7.50″H Net weight – 8.60 lbs About Compressor Duty Cycle
Compressor duty cycle refers to amount of time a compressor can be operated in a given time period, at 100 PSI and at a standard ambient temperature of 72°F. Duty Cycle is commonly expressed in percentile as: compressor on time (compressor on time + off time) %. As an example, a compressor that is rated for 25% duty cycle means that compressor can be operated at: 100 PSI @ 72°F for 10 minutes on and 30 minutes off. 10 min. on / (10 min. on + 30 Min. off) = 10 min. / 40 Min = 25% duty cycle.

Fill Rates:
  35″ x 12.5″ 37″ x 12.5″ 0 – 30 PSI 5 min. 25 sec. 2 min. 00 sec. 15 – 30 PSI 5 min. 00 sec. 2 min. 45 sec.
What’s in the Box
1-VIAIR 300P portable air compressor 1-Deluxe zippered carry bag with storage compartments 1-25′, 5-in-1 inflator/deflator open ended air hose with 120 PSI gauge 1-Heavy duty sand tray with vibration isolators 1-Set of dual heavy duty direct battery clamps 1-8′ power cable 1-3 piece inflation tips kit 1-Inline fuse holder 1-Owner’s manual 1-Year Limited Warranty
VIAIR Corporation warrants this product, when properly installed and under normal conditions of use, to be free from defects in workmanship and materials for a period of one (1) year from its original date of purchase. This warranty covers product defects only. It does not cover incidental or consequential damages as a result of misuse or abuse.

About VIAIR Corporation
VIAIR offers the most complete line of air compressors and air accessories for both the on-and off-road markets available anywhere. VIAIR products are used in the OEM segment, 4×4 and Sport Air Suspension and have become the industry standard for both 12- and 24-volt automotive applications worldwide. Their compressors are currently being used in every corner of the globe, in the harshest climates imaginable and the company is recognized by its customers and peers alike as the leading manufacturer of high performance air compressors for mobile pneumatic applications.