# What are the air compressors with air tanks that offer the fastest inflation speed for tyres? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What are the air compressors with air tanks that offer the fastest inflation speed for tyres?

## Products

### VIAIR 400P-RV Automatic Portable Compressor Part Number 40047
```yaml
product: viair-400p-rv-automatic-portable-compressor-part-number-40047
brand: VIAIR
price_gbp: 181.26
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 10.75
portable: true
max_pressure: 150
power_source: 12-Volt
```

- **Price:** £181.26 [^1]
- **Summary:** The VIAIR 400P-RV is a portable 12-volt tire compressor with 150 PSI maximum working pressure, automatic shut-off, dual battery clamps, long air hoses, and RV-specific inflation accessories. It suits RV owners, motorhome drivers, and off-road users who need high-pressure tyre inflation away from service stations.
- **Ideal For:** It specifically suits fast tyre inflation because its 2.30 CFM free-flow rate, 150 PSI capability, and automatic trigger-controlled inflation gun can inflate 275/80/22.5 tyres from 80 to 90 PSI in under 3 minutes.
- **Additional Sources:** [^2]

### VIAIR 400P-RVS Automatic Tire Inflator Part Number 40044
```yaml
product: viair-400p-rvs-automatic-tire-inflator-part-number-40044
brand: VIAIR
price_gbp: 250.48
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 10.75
portable: true
max_pressure: 150
power_source: 12-volt
```

- **Price:** £250.48 [^3]
- **Summary:** The VIAIR 400P-RVS is a portable 12-volt automatic tire inflator designed for Class C motorhomes, toy haulers, and camper vans. It delivers up to 150 PSI and includes long air hoses, a tire-inflation gun, automatic shut-off, and RV-specific accessories.
- **Ideal For:** This product suits users seeking fast tyre inflation because its 150 PSI capability, 2.30 CFM rating at 0 PSI, 30-amp motor, and automatic trigger-controlled inflation system are designed for high-pressure RV tyres.
- **Additional Sources:** [^4], [^5]

### VIAIR 400P-RV EF Automatic Portable Compressor Part Number 40144
```yaml
product: viair-400p-rv-ef-automatic-portable-compressor-part-number-40144
brand: VIAIR
price_gbp: 269.59
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 10.35
portable: true
flow_rate: 1.59
max_pressure: 150
power_source: 12-Volt battery power with SAE connection and battery clamps
```

- **Price:** £269.59 [^6]
- **Summary:** The VIAIR 400P-RV EF is a portable 12-volt compressor with Enhanced Flow technology, a 150 PSI maximum working pressure, and a 1.59 CFM flow rate at 90 PSI. Its long hose reach, inflation gun, and dually-tire compatibility make it well suited to RV owners and drivers of large vehicles.
- **Ideal For:** This compressor suits fast tyre inflation because its Enhanced Flow technology delivers up to 10% faster filling, while its 1.59 CFM flow rate at 90 PSI and 150 PSI maximum working pressure support rapid inflation of large and dually tyres.
- **Additional Sources:** [^7], [^8]

---
## References & Sources
[^1]: VIAIR, accessed 2026-09-13. https://viaircorp.com/products/400p-rv-auto-portable
[^2]: The Home Depot, accessed 2026-09-13. https://www.homedepot.com/p/VIAIR-400P-RV-12-Volt-12v-Automatic-Portable-Compressor-Kit-RV-Tire-Inflator-Pump-For-Class-C-Motorhomes-150-PSI-40047/206170317
[^3]: VIAIR, accessed 2026-09-13. https://viaircorp.com/products/400p-rvs-auto-portable
[^4]: Offroad Alliance, accessed 2026-09-13. https://offroadalliance.com/400p-rvs-automatic-portable-compressor-kit-12v-33-duty-40-min-30-psi/
[^5]: AmericanMuscle, accessed 2026-09-13. https://www.americanmuscle.com/viair-uam-400p-rvs-automatic-tire-inflator-150-psi-230-cfm-40044.html
[^6]: VIAIR, accessed 2026-09-13. https://viaircorp.com/products/400p-rv-ef-automatic-portable-compressor
[^7]: Evergreen Offroad, accessed 2026-09-13. https://evergreenoffroad.com/products/viair-400p-rv-ef-automatic-portable-compressor-40144
[^8]: Lowriders Unlimited, accessed 2026-09-13. https://www.lowriders.ca/i-23931529-40144-viair-400p-rv-ef-automatic-portable-compressor-tire-inflator-with-inline-160-psi-gauge-inflation-gun-150-psi-12-volt-power-battery-clamps-with-2-pin-sae-connector.html