Annovi Reverberi AR503 BlueFlex diaphragm pump 
Honda GX390 11 hp recoil and electric start
Note: battery and leads not included
RM40 control valve
54 lpm (14.3 lpm)
40 bar (580 psi) 

Annovi Reverberi AR503 diaphragm pump
3 x BlueFlex long life diaphragms
Performance:
54 lpm (14.3 gpm)
40 bar (580 psi)
550 rpm
5.5 hp requirement
Features:
3 diaphragms
60 degrees C max temperature
Self-priming
OK to run dry
Materials:
Anodized aluminium body
BlueFlex long life diaphragms
Pump ports:
3/4 inch BSP(M) outlet port
30 mm inlet hose tail
Oil type:
SAE 30 engine oil

Honda GX390 engine
4-stroke
Air cooled  
OHV
389 cc
Performance:
11.7 hp (8.7 kW) @ 3600 rpm
19.5 ft-lb (26.4 Nm) @ 2500 rpm
Capacities:
1.1 litre (1.16 US qt) crankcase oil capacity
6.1 litre (6.4 US qts) fuel tank capacity
Engine oil type:
Honda factory approved 10W/30 engine oil