No.DescriptionPriceQuantity
1+ Expansion tank and probe  
2+ Pressure relief cap  
3+ Drain hose  
4+ Water hose  
5+ Pipe clip  
6+ Vapour hose  
7+ Grommet  
8+ Self tapping screw  
9+ Spacer  
10+ Setscrew  
11+ Worm drive hose clip  
12+ Heater water valve  
13+ Heater valve mounting bracket  
14+ Pan posi head setscrew  
15+ Shakeproof washer  
16+ Washer  
17+ Recessed setscrew  
18+ Shakeproof washer  
19+ Washer  
20+ Hose  
21+ Hose clip  
22+ Hose  
23+ Heater return hose  
24+ Clip  
25+ Water pipe  
26+ Hose  
27+ Hose  
28+ Pipe  
29+ Worm drive hose clip  
30+ Hose  

The part numbers in the assembly image below relate to the product number in the table. Clicking on the part number will open up the relevant part details.