Neptune 637-N4
| Diameter | 2" (50.8 mm) Piston |
| Diaphragm | PTFE |
| Head / Fittings | C-20 Head |
| Maximum Flow (GPH) | 160 GPH at 60 Hz |
| Maximum Operating Temperature | 200 °F (93.3 °C) |
| Maximum Strokes Per Minute | 144 |
| Part Number | 637N4 |
| Product Notes | Price Less Motor (Motor Sold Separately) |
| Valve Balls | C-20 |
| Valve / Seat / O-Ring | C-20 Check Valve Body; FKM O-Rings |