Verified specifications
| Part number | 104302 |
|---|---|
| Horsepower | 1/6 HP (ECM) |
| Speed | 1500–4450 RPM variable |
| Voltage | 208-230V, single-phase, 50/60 Hz |
| Construction | ECM wet-rotor |
| Body | Cast iron |
| Connections | 3/4"–1-1/2" flanged |
| Controls | Proportional-pressure / constant-pressure / constant-speed + night setback |
| BMS | Modbus/BACnet |
| Protection | CircGuard |
| Enclosure | IP44 |
| Max pressure | 175 psi |
| Temperature range | 14–230°F |
| Alternate P/Ns | 104301 (cast iron, 115V); 104451LF (stainless, 115V); 104452LF (stainless, 208-230V); 104402LF (bronze, 208-230V) |
ECM variable-speed: the high-efficiency upgrade path from a fixed-speed circulator. Stainless body = potable-water rated.
The big commercial ECM in-line — step up from batch-1's ecocirc+ 20-18. Name follows the head/flow class convention (~36 ft / 45 GPM class); do not expect the family-level max-flow copy on this P/N.
Confirming the right replacement
Before we quote, compare these fields on your failed pump's nameplate. If any of them differ, send us a photo of the nameplate and we'll match it exactly rather than guessing:
- Full model number — including the part number (e.g. B&G P/N) where one exists
- Voltage and phase
- System duty: flow (GPM), head (ft), and fluid — heating water vs. potable water matters
- Flange size and orientation for in-line replacements
Other Bell & Gossett models
- More Bell & Gossett modelsBrowse every Bell & Gossett model page we quote
- Bell & Gossett ecocirc+ 20-18ecocirc+ ECM circulator, stainless, potable
Need a Bell & Gossett ecocirc XL 36-45?
Send the nameplate off your failed unit. We'll confirm the match and quote the ecocirc XL 36-45 or a verified equivalent with availability and lead time.
Quote this pump