| Accessory Type | HOT WATER HEATING ACCESORY |
|---|---|
| Pack Size | 1 |
| Product Weight (lb) | 5 lb |
| Product Depth (in) | 8 in |
| Product Height (in) | 13 in |
| Product Width (in) | 8 in |
| UPC | 705353510700 |
Check the listing for details. Expansion Tank for Hydronic/Boiler No. 15 Water Tight Reservoir Expanded Water. Condition: New. Listed at 62.99 USD. Ideal choice for hydronic heating systems. The extrol no. 15 expansion tank is pre-pressurized and features a diaphragm design, this expansion tank is designed for use with a hydronic heating system, it accepts expanded water as system temperature rises to reduce pressure build up.