The Model 137 family delivers reliable 1/2 HP effluent and dewatering performance designed for sump and septic applications, offering durability, high flow rates, and dependable solids handling. With a cast‑iron vortex impeller, oil‑filled motor, and corrosion‑resistant construction, these pumps provide long‑lasting protection and trouble‑free service in demanding environments.
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The Model 137 family delivers reliable 1/2 HP effluent and dewatering performance designed for sump and septic applications, offering durability, high flow rates, and dependable solids handling. With a cast‑iron vortex impeller, oil‑filled motor, and corrosion‑resistant construction, these pumps provide long‑lasting protection and trouble‑free service in demanding environments.
The Model 137 family of effluent and dewatering pumps is engineered to deliver rugged, dependable performance in sump and septic system applications where reliability is critical. Powered by a 1/2 HP split‑phase motor, each Model 137 pump features an oil‑filled motor chamber and finned cast‑iron motor housing to ensure optimal heat dissipation, allowing the pump to operate efficiently during extended or continuous‑duty cycles. Designed to handle the demands of residential and light commercial basement and septic systems, these pumps combine Zoeller’s proven hydraulic design with durable construction for long service life.
A cast‑iron vortex impeller enables the handling of 5/8‑inch spherical solids, reducing clogging and minimizing maintenance while maintaining strong, uninterrupted flow. With performance capabilities up to 26 feet of head and 90 GPM, the Model 137 excels in applications requiring higher flow and moderate head, including effluent pumping, septic tank dosing, and general dewatering. The powder‑coated epoxy finish protects against corrosion in harsh environments, and stainless steel screws, handle, and hardware enhance overall durability.
Available in multiple cord lengths to match your application needs, the Model 137 family is backed by a 3‑year warranty, reflecting Zoeller’s commitment to performance quality and long‑term reliability. When you need a pump built to withstand the challenges of septic applications while delivering smooth, consistent operation, the Model 137 family is a trusted choice — Trusted. Tested. Tough.®
Shipping Weight:
N/A
Shipping Dimensions:
Height 13 3/4 in x Width 11 in x Length 11 in.
Horsepower:
1/2
Voltage:
115, 200-208, 230, 460
Phase:
1, 3
Operation:
Automatic, Nonautomatic
Switch:
Snap-Action, Piggyback, None
AMP:
2.0 – 9.4
Hertz:
60
RPM:
1725
Discharge:
1-1/2" NPT
Solids Handling:
5/8" (15 mm) spherical solids
On/Off Points:
10" (25.4 cm) / 2-3/4" (7 cm)
Impeller Material:
Cast Iron
Impeller Type:
Vortex
Cord Length:
10' (3.1 m), 15’ (5 m), 25' (7.62 m), 35' (10.67 m)
Technical Data
Installation Instructions
Parts Lists
Performance Curves
Color 1
Color 2
Color 3
Color 4
Color 5