It preferably comprises a durable, one piece plastic turbine blade 8 and {TAIL ~ shaft} 9 which is mounted into a split two piece outer casing 12 with a single seal 13 for preventing {HEAD ~ liquid leakage} 
It preferably comprises a durable , one piece plastic turbine blade 8 and { TAIL ~ shaft } 9 which is mounted into a split two piece outer casing 12 with a single seal 13 for preventing { HEAD ~ liquid leakage }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD