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Frequently Asked Questions

AuxAir66 auxiliary air system operating AirLIFT-580 air jack

What does HPA stand for? Isn’t this just a compressed air tank?

HPA stands for high pressure air and NO, an HPA system isn’t just a compressed air tank. Please read on for more information…

How is a HPA system different than a portable air tank or SCUBA tank?

Capacity! Portable air tanks store air at the output pressure of a shop air compressor. This is typically around 125-200psi. To fill (4) 35” tires to 44psi would require a very large air tank which reduces the space in your rig for off-road gear, tools and friends.
For a given volume, SCUBA tanks offer much more energy than a portable air tank since they store air at a much higher pressure; usually around 3,000psi. This additional energy means more tire fills & longer tool runtime.
An HPA system offers 50% more pressure than most SCUBA systems providing maximum capacity for all your off-road needs. This HPA capacity can only be achieved by using composite cylinders made from high tensile strength carbon fibers.

How many tire fills can I get with your system?

This answer will vary based on a number of factors, however; AuxAir66 capacity is similar to a 10lb CO2 system. You can expect to get 10 tire fills in a 35" (315/70R17) tire from 15psi (the lowest pressure most will run without bead-locks) to 44psi (rated cold tire pressure for the Ford Raptors operating on pavement).

Note: Air heats up when compressed. For maximum capacity, cylinders must be filled very slowly or "topped-off" after a fill when the air cools to ambient temperature.

Is a Carbon Dioxide (CO2) safer than HPA since it is stored at lower pressures?

NO! Carbon Dioxide (CO2) is classified as neither flammable nor toxic, however; it may cause intoxication at elevated concentrations. Concentrations of CO2 can be hazardous above 5,000ppm. Exposure to levels above 30,000ppm (3.0%) CO2 can cause respiratory issues, headache, hearing issues, increased blood pressure and pulse rate. If you have a CO2 system but haven’t read the warning labels, we encourage you to do so. If your CO2 system doesn’t have a warning label, we suggest you re-think the use of that system.
Another hazard that can occur in CO2 cylinders are tank explosions due to a phenomenon called Boiling Liquid Expanding Vapor Explosion (BLEVE). A BLEVE can occur if a CO2 tank were punctured allowing large amounts of CO2 to leave the cylinder rapidly. Projectile pieces form an exploding tank can cause injury or death.
HPA Systems are designed to hold air pressure. This is the same air we breathe every day. It is non-toxic to humans and safe for the environment. HPA Systems are made with cylinders utilizing some of the safest designs available anywhere. While other systems just use aluminum cylinders, we wrap our aluminum cylinders in carbon fibers for maximum strength and then fiberglass fibers for superior toughness. The best part is, since HPA is stored and released as a gas, no chance of BLEVE explosions.

Information for this section was obtained from the following sources:
Boiling Liquid Expanding Vapour Explosion in CO2 Small Scale Experiments by Bjerketvedt,D.
Cornelius User’s Guide Carbon Dioxide Cylinders and Regulators

Can I use Nitrogen in my HPA tank?

Absolutely! Air is approximately 78% nitrogen. Commercially bottled nitrogen is generally 90-95% nitrogen. There are no issues using commercially bottled nitrogen in our AuxAir66 system.

Where can I get my HPA tank filled?

One of the things we love about HPA Systems is that they can be filled at a number of locations for a low or sometimes no fee! Many commercial gas companies won’t fill your brand new CO2 tank and require you to trade it in for their dirty, ugly unit.
We suggest finding a local fill station prior to purchasing an HPA unit. Many paintball shops, sporting good stores, SCUBA shops & Fire Stations can fill HPA systems. Another option would be to purchase your own compressor. Please see our products page for compatible compressor options.

Will using HPA void my tire’s warranty?

No, so long as you maintain proper air pressure in your tires. However using CO2 in some manufactures tires will void the warranty. We recommend contacting the tire manufacture for more information.

Warranty

HPA Systems Valves or Regulators are warranted against manufacturing defects in materials and workmanship for the lifetime of the product. For the first year (12 months) from the original date of purchase, HPA Systems will repair or replace (at the election and expense of HPA Systems) a valve or regulator for free so long as a dated copy of the original sale invoice is provided along with the defective regulator. After the first year we will repair or replace a valve or regulator for a nominal $30 fee to cover all parts (not including gauges), labor, and return shipping. If a regulator is returned for repair without a copy of a receipt it will be assumed to be past the one year period and will be charged fees accordingly. The valve or regulator must be returned to HPA Systems for warranty service.

Only original, unaltered, and unmodified valves or regulators are covered by this policy. This warranty does not cover damage caused by accident, improper care, or negligence. This warranty does not cover consequential damages or any other losses arising from any defect of the product. HPA Systems warranty will not cover abnormal use or valves/regulators that have been tampered with. Abnormal use or tampering includes but is not limited to modification or disassembly of any part of the valve or regulator, unreasonable use, use with a gas other than air or N2, use on a non-certified air cylinder (past due hydro date or failed hydro test), use on a non-air or N2 cylinder, neglect, lack of maintenance or care, use in a production related service, improper lubrication, or use after malfunction or damage has occurred.

Customer is responsible for sending the unit to our facility. HPA Systems provides standard return shipping. Customer is responsible for expedited shipping less the cost of standard shipping. This warranty is transferable and applies to USA only.

HPA Systems Cylinders have a 15 year warranty from the manufacture date printed on the cylinder. Each cylinder requires a recertification test every five years from the cylinder's manufacture date. If a cylinder should fail the recertification*, the customer may return the decommissioned cylinder (a failure report from the testing facility is required) to HPA Systems at the customer's cost in exchange for a brand new replacement cylinder. HPA Systems covers shipping the new bottle to the customer. Customer is responsible for sending the unit to our facility. HPA Systems provides standard return shipping. Customer is responsible for expedited shipping less the cost of standard shipping. This warranty is transferable and applies to USA only.

*Failures based on physical, external damage to the cylinder are not covered under this warranty.

HPA Systems Tire Inflators and Deflators are warranted against manufacturing defects in materials and workmanship for one year (12 months) from the date of purchase. If a HPA Systems Tire Inflator fails due to a manufacturing defect within the first year from date of purchase, we will repair the unit or replace it, at our discretion. Customer may be responsible for cost of replacement parts to be no more than 50% retail cost of the part in question. Only original, unaltered, and unmodified units are covered by this policy. This warranty does not cover damage caused by accident, improper care, or negligence. This warranty does not cover consequential damages or any other losses arising from any defect of the product.

Without a proof of purchase, it will be assumed that your Tire Inflator or Deflator is over one year old and does not fall within the scope of this warranty. We may be able to look up the original order if you bought direct or we may be able to assess age based on pictures included in a Warranty Request Email submission. This is not a guarantee. Customer is responsible for sending the unit to our facility. HPA Systems provides standard return shipping if the unit is within the warranty period. Customer is responsible for expedited shipping less the cost of standard shipping. This warranty is transferable and applies to USA only.

HPA Systems Hoses Assemblies are warranted against manufacturing defects in materials and workmanship for one year (12 months) from the date of purchase. If a HPA Systems Hose Assembly fails due to a manufacturing defect within two years from date of purchase, we will repair the unit, without charge, or replace it, at our discretion. Only original, unaltered, and unmodified units are covered by this policy. This warranty does not cover damage caused by accident, improper care, or negligence. This warranty does not cover consequential damages or any other losses arising from any defect of the product. Without a proof of purchase, it will be assumed that your Hose Assembly is over two years old and does not fall within the scope of this warranty. We may be able to look up the original order if you bought direct. This is not a guarantee. HPA Systems provides standard return shipping if the unit is within the warranty period. Customer is responsible for expedited shipping less the cost of standard shipping. This warranty is transferable and applies to USA only.

All other HPA Systems products are warranted against manufacturing defects in materials and workmanship for 60 days from the date of purchase. If a HPA Systems product fails due to a manufacturing defect within 60 days from date of purchase, we will repair the unit, without charge, or replace it, at our discretion. Only original, unaltered, and unmodified units are covered by this policy. This warranty does not cover damage caused by accident, improper care, or negligence. This warranty does not cover consequential damages or any other losses arising from any defect of the product. Without a proof of purchase, it will be assumed that your product is over 60 days old and does not fall within the scope of this warranty. We may be able to look up the original order if you bought direct. This is not a guarantee. HPA Systems provides standard return shipping if the unit is within the warranty period. Customer is responsible for expedited shipping less the cost of standard shipping. This warranty is transferable and applies to USA only.

MidwestTrx products are warranted against manufacturing defects in materials and workmanship for 60 days from the date of purchase. If a MidwestTrx product fails due to a manufacturing defect within 60 days from date of purchase, we will repair the unit, without charge, or replace it, at our discretion. Only original, unaltered, and unmodified units are covered by this policy. This warranty does not cover damage caused by accident, improper care, or negligence. This warranty does not cover consequential damages or any other losses arising from any defect of the product. Without a proof of purchase, it will be assumed that your product is over 60 days old and does not fall within the scope of this warranty. We may be able to look up the original order if you bought direct. This is not a guarantee. MidwestTrx provides standard return shipping if the unit is within the warranty period. Customer is responsible for expedited shipping less the cost of standard shipping. This warranty is transferable and applies to USA only.

All Other Products sold by but not manufactured by HPA Systems, and not listed above are not covered by this warranty policy. For these items, please see the warranty policy listed on the individual product pages or contact the manufacture directly for their product warranty policy.

KSI Engineering LLC shall not be liable for any incidental, special, or consequential cost or damages incurred by purchaser or user in connection with the use or misuse of our products.

We reserve the right to change the terms and conditions of the above warranty at any time and without prior notice.

Warranty Request Email

If you have a problem, do not hesitate to reach out to us. To make the process as fast and efficient as possible, please submit a warranty request email.

Warranty Request

Shipping & Return Policy

Online orders are accepted 24 hours a day, 7 days a week. Orders are processed in the order they are received during normal business hours. Expedited shipping orders are elevated in priority and will be moved ahead in the queue. USPS orders received after 10 am or UPS and FedEx orders received after 1pm PST will typically be processed and shipped the following business day, including expedited shipping options.

Most orders are shipped within 24 to 48 hours. However, if a part is on backorder or we have a rush of orders your shipment may be delayed. If there is an urgent need for your order to get shipped out to meet a delivery date please call and let us know (586) 960-5983. Otherwise, your order will be put into the queue and shipped as soon as possible.

Most orders are shipped from our office in West Bloomfield, MI however; some items are drop shipped directly from the manufacture. In these select cases, the product page will specify when an item is to be drop shipped. Our operating hours are 9:00 to 5:00 pm M-F. Orders placed from Friday to Sunday will be processed the following Monday. HPA Systems cannot guarantee your ship date if an order is on hold for review. Possible reasons for review include but are not limited to: your address is not verified by our shipping system, a problem with your discount code, a problem with your payment.

If, for whatever reason, a package is undeliverable and is marked return to sender and sent back to our facility, the customer is responsible for any shipping charges incurred for the return as well as additional shipping charges to resend the package.

LOST OR STOLEN SHIPMENTS

If the tracking number shows delivered to your address but is missing, you must report it to us within ten business days of receiving a tracking number. Please call us at (586) 960-5983. If the package is held for pickup, we will give you contact information so that you may retrieve your package or plan a redelivery. If the package is lost, we will open an investigation with the appropriate shipper. If the package is deemed a complete loss, in most cases, we will reship your order at no charge, inventory permitting. This is not a guarantee. We are not responsible for lost packages due to an incomplete or incorrect shipping address provided by the customer.

If a package is returned to us due to an unobtainable signature or an incorrect or incomplete shipping address provided, further shipping charges will be charged to the customer for reshipment. If the customer cannot be reached after five business days, the order will be cancelled and the original purchase amount less the cost of shipping and a 15% restocking fee will be refunded to the original purchase method.

INTERNATIONAL SHIPMENTS

HPA Systems now delivers outside of the USA! The customer is responsible for all duties, taxes, and other fees which vary by country of destination. Before ordering, please research pressurized cylinder transportation laws and regulations in your respective location.

All international sales are final. We do not offer expedited shipping, returns, or warranty services to orders outside of the USA. International shipments are through FedEX. Please email admin@hpasystems.com for any questions or concerns.

RETURNS

If a customer is not completely satisfied with their purchase and would like to return the product they must reach out to HPA Systems within 30 days of the original ship date and the items must be received back to our shop within 60 days from the original ship date. We can be reached at (586) 960-5983 or admin@hpasystems.com. The customer is responsible for all shipping charges back to our facility. Original order shipping charges are non-refundable. Items returned in new condition will be accepted for a full refund paid back to the original payment method. Items returned that are determined to not be in new condition will be subject to a 15% restocking fee. Condition is up to HPA Systems to determine and factors include but are not limited to: paint scratches/blemishes, scuffs, signs of wear, modifications to the product. Please note that damage occurring during the shipping back to our facility are the customer's responsibility. Pack carefully. Original packaging is not required for returns.