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Dayton 3YU59 1/2 HP Submersible Sump Pump, 1-1/4 in MNPT, 120V AC, Vertical Float
Mfr #: 3YU59BB #: dayton-3yu59-dayton-3yu59-1-2-hp-submersible-sump-pump-1-1-4-in-mnpt
Last verified Oct 2, 2026 — price check expired
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Check current price✓Delivery: Standard shipping
✓Returns: Standard returns
⇄ Vendor prices
| Vendor | Price | Shipping |
|---|---|---|
| SIM Supply | $303.94 | See site |
Prices observed across vendors — click a vendor’s name to verify the price on their own page before ordering.
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🗎 Product description from the manufacturer spec sheet
Dayton 3YU59 automatic thermoplastic submersible sump pump — 1/2 HP, 115/120V AC single phase, vertical float switch with integral electrical connection. 1-1/4 in MNPT discharge, 10 ft 18/3 SJTW power cord with NEMA 5-15P plug, 5.1A draw. Polypropylene housing/volute/base, polyamide open-vortex impeller, stainless steel shaft, carbon/ceramic/Buna-N mechanical seal. Max head 35 ft; 41 GPM at 5 ft of head, 36 GPM at 10 ft. Min 8 in sump pit diameter; internal thermal overload; intermittent duty.
▦ Specifications spec-checked before it ships
Motor
- Motor Type
- PSC
- Motor Speed
- 3450 RPM
Switch
- Switch Type
- Vertical Float
- Switch Electrical Connection
- Integral
Impeller
- Impeller Type
- Open Vortex
- Impeller Material
- Polyamide
Seal
- Seal Type
- Single Mechanical
- Seal Materials
- Carbon/Ceramic/Buna-N
Duty
- Duty
- Intermittent
- Duty Cycle Note
- Intermittent
Max
- Max Head
- 35 ft
- Max Solids Handling
- 1/8 in spherical
- Max Water Temperature
- 104°F (40°C) / 140°F (60°C per datasheet)
- Max Ambient Temperature
- 40°C
Flow
- Flow Rate @ 5 Ft Head
- 41 GPM
- Flow Rate @ 10 Ft Head
- 36 GPM
- Flow Rate @ 15 Ft Head
- 31 GPM
- Flow Rate @ 20 Ft Head
- 24 GPM
- Flow Rate @ 25 Ft Head
- 18 GPM
- Flow Rate @ 30 Ft Head
- 4 GPM
More specifications
- Horsepower
- 1/2
- Rated Voltage
- 115V AC / 120V AC
- Phase
- Single
- Frequency
- 60 Hz
- Amps
- 5.1 A
- Overload Protection
- Internal Thermal Overload
- Off Point
- 1-49/64 in
- On Point
- 4-29/32 in
- Discharge
- 1-1/4 in MNPT, Vertical
- Power Cord
- 10 ft, 18/3 SJTW, NEMA 5-15P 120V Plug
- Housing Material
- Polypropylene
- Volute Material
- Polypropylene
- Base Material
- Polypropylene
- Shaft Material
- Stainless Steel
- Bearings
- Single Row Ball, Permanently Lubricated
- Min Sump Pit Diameter
- 8 in
- Body Diameter
- 8-1/2 in
- Overall Height
- 11 in
- Designed Fluid Environment
- Water / Wastewater
- Shipping Weight
- 12.1 lb
⌗ Cross-references every known SKU, MFR & MPN
MPN3YU59