Features:
- Designed for low pressure, high volume systems
- Viper wet end designed specifically for 56-frame motors
- Large 8" diameter wet end allows for more volume
- Large 2 ½" intake for improved flow performance and reduced noise
- Highly versatile wet end can be rotated every 90°
- 56-frame motor for added strength, cooler operating temperature and longer motor life
- Two double shielded ball bearings with moisture resistant grease for quieter operation and longer life
- Thermally protected to extend life expectancy of motor
- Silicone carbide seals, Viton bellows, 316SS casing, corrosion resistance against chlorine, bromine & salt
viper performance chart
1-Speed Viper 56-Frame Pumps
| Part No. | Description | HP | Volts | Amps | HZ | Dimension "A" | Weight (lbs.) |
| 3711621-1V | 2 1⁄2" Intake - 2 1⁄2" Discharge | 4 | 230 | 12 | 60 | 11" | 41 |
| 3712021-1V | 2 1⁄2" Intake - 2 1⁄2" Discharge | 5 | 230 | 16.4 | 60 | 11" | — |
2-Speed Viper 56-Frame Pumps
| Part No. | Description | HP | Volts | Amps High Speed | Amps Low Speed | HZ | Dimension "A" | Weight (lbs.) |
| 3721621-1V | 2 ½" Intake - 2 ½" Discharge | 4 | 230 | 12 | 4.4 | 60 | 11" | 44 |
| 3722021-1V | 2 ½" Intake - 2 ½" Discharge | 5 | 230 | 16.4 | 4.8 | 60 | 11" | 47 |
Note: 0V for bulk orders.
Pumps and replacement motors that are single speed and one (1) total HP or greater cannot be sold, offered for sale, or installed in a residential pool for filtration use in California,
Title 20 CCR sections 1601-1609.