| Model | QRS 3.0 | QRS 5.0 | QRS 7.5 | QRS 10 | QRS 15 |
| HP | 3 | 5 | 7.5 | 10 | 15 |
| acfm @ 125 psig | N/A | N/A | N/A | 37 | 52 |
| acfm @ 150 psig | 8.5 | 16.6 | 21.2 | 33 | 47 |
| Max Pressure | 150 | 150 | 150 | 128/150 | 128/150 |
| Sound Level (dBA) | 61 | 62 | 64 | 66 | 68 |
| Length (in) | 56 | 56 | 56 | 73 | 73 |
| Width (in) | 22 | 22 | 22 | 24 | 24 |
| Height | 50 | 50 | 50 | 58 | 58 |
| Net Wt. (lbs)/ Shipping Wt. (lbs) |
HP (w/o dryer) |
463/485 | 463/485 | 468/490 | 775/845 | 815/885 |
| HPD (w/ dryer) |
543/565 | 543/565 | 548/570 | 850/920 | 890/960 |
| Model | QRS-20 | QRS-25 | QRS-30 |
| HP | 20 | 25 | 30 |
| acfm @ 100 psig | 90 | 111 | 130 |
| acfm @ 125 psig | 84 | 99 | 122 |
| acfm @ 150 psig | 74 | 94 | 109 |
| Sound Level (dBA) | 63 | 66 | 68 |
| Length (in) | 53 | 53 | 53 |
| Width (in) | 31 | 31 | 31 |
| Height | 48 | 48 | 48 |
| Base Weight | 893 | 913 | 948 |