| Union Fitting Application | Pump |
| First Plumbing Connection Size | 1-1/2″ |
| First Plumbing Connection Type | Male Hayward Buttress Thread (mhbt), O Ring Flange, Slip (s) |
| Second Plumbing Connection Size | 1-1/2″ |
| Second Plumbing Connection Type | Male Hayward Buttress Thread (mhbt), Slip (s) |
| Union Fitting Part Type | Tailpiece |
| Manufacturer | Hayward |
SPX1500JS has threads on the outside. Hayward refers to this as “socket”















