The canister replacement parts are for previous ECF Canister Filters that were sold in 202 & earlier. The o-ring replacement kits include a large o-ring for the filter and 2 o-rings for hose barbs. Please read the description next to the part number to make sure the correct replacement part is ordered. 
| Part Number | 
 Description
 | 
| EC13F | 
For ECf10 Units (2 pads) | 
| EC39F | 
For ECF25 & 40 units (3 pads) | 
| ECK13BK | 
For ECF10 Units | 
| EC2639BK | 
For ECF25 & 40 Units | 
| 10UB | 
7 watt bulb for ECF10U | 
| 10US | 
7 watt sleeve for ECF10U | 
| 25UB | 
9 watt bulb for ECF25U | 
| 25US | 
9 watt sleeve for ECF25U | 
| 40UB | 
13 watt bulb for ECF40U | 
| 40US | 
13 watt sleeve for ECF40U | 
| ECFK1 | 
For ECF10 units | 
| ECFK2 | 
For ECF25 & 40 units |