Medium Duty GX Pump
GX Pump 5K1
5,800 PSI max · Water + fan cooled
120V Auto-stop
The single-piston 5K2. 4-stage, 900W, 5800 PSI, auto-stop, 10 hours continuous. Sold direct by GX.
Compressors / By What It Fills
Compressors That Can Fill Large Tanks (88CF / 97CF / 9L)
Big carbon fiber tanks. Takes a compressor that can run a long time without cooking itself.
2 compressors
Narrow it down further → Medium Duty 
Medium Duty GX Pump
GX Pump 5K2
5,800 PSI max · Water + fan cooled
120V Auto-stop
Dual-piston, 4-stage, 1200W, 5800 PSI. Fills a 6.8L tank in about 45 minutes. Rated for 10 hours continuous. Sold direct by GX.