51001 100 sq.ft. Seasonmaster Model 141 before 1994)
51001
| OD | 5-7/8"（150mm） | Length | 25-3/4"（670mm） |
| Top | semi-circular Handle | Bottom | male slip fitting w/ molded o-ring |
| Manufacturer | 100 sq.ft. Seasonmaster Model 141 before 1994) | ||
| Replacement | Unicel：C-5399 | ||
| 51001 | |
| OD | 5-7/8"（150mm） |
| Length | 25-3/4"（670mm） |
| Top | semi-circular Handle |
| Bottom | male slip fitting w/ molded o-ring |
| Manufacturer | 100 sq.ft. Seasonmaster Model 141 before 1994) |
| Replacement | Unicel：C-5399 |