✅ This item is normally regularly stocked. Shipping times may vary depending on availability. Please contact us to confirm stock and shipping times. You will receive tracking details once the item has shipped.
Description
HCP FN-21UL Sewage Ejector Pump for Raw Sewage and 2-Inch Solids
Product Overview
The HCP FN-21UL submersible sewage ejector pump moves raw residential and light-commercial sewage from a below-grade basin up to a gravity main, septic tank, or treatment system. Its 1 HP motor passes solids up to 2 inches (50 mm) and delivers up to 100 GPM (about 6,000 GPH), with 120V, 240V, and 575V models available.
Quick Specs
- Horsepower: 1 HP (0.75 kW)
- Voltage / Phase: 120V 1-phase (10.4 A), also 208/240V 3-phase (3.8 A) and 575V 3-phase (1.5 A), 60 Hz
- Discharge: 2 inch (50 mm), Female NPT
- Solids Handling: 2 inch (50 mm)
- Max Flow: 100 GPM (about 6,000 GPH)
- Max Head: 36 ft
- Impeller: Non-clog vortex
- Cord: 30 ft, 3-prong 120V plug
Key Features of HCP FN-21UL Sewage Ejector Pumps
- The non-clog vortex impeller passes solids up to 2 inches (50 mm), the full residential sewage-ejector rating, so it clears raw sewage that a smaller effluent pump would jam on.
- At 1 HP, it delivers more head than the 1/2 HP ejectors common in homes, lifting to about 36 ft for deeper basins and longer runs up to the main, while still moving up to 100 GPM (about 6,000 GPH).
- An open inlet with no strainer feeds solids straight into the volute. As an ejector rather than a grinder, it passes waste whole instead of macerating it.
- Twin mechanical seals, carbon/ceramic over silicon carbide, run in an oil bath to keep sewage out of the motor. The 120V model adds an auto-cut thermal protector and a moisture sensor.
- A cast-iron (FC200) casing and 304 stainless steel motor frame, IP68 sealed, are rated for permanent submersion in a sewage basin to 33 ft (10 m).
Specifications
| Category | Details |
|---|---|
| Brand | HCP |
| Model | FN-21UL |
| SKU (by voltage) | FN-21UL-6117EPE3NX (120V), FN-21UL-63AOEXE4NX (240V), FN-21UL-635OEXE4NX (575V) |
| Product Type | Submersible sewage ejector pump |
| Motor Output | 1 HP (0.75 kW); input 1.1 kW (120V), 1.05 kW (3-phase) |
| Voltage Options | 120V 1-phase, 208/240V 3-phase, 575V 3-phase, 60 Hz |
| Rated Current | 10.4 A (120V), 3.8 A (240V 3-ph), 1.5 A (575V 3-ph) |
| Start Method | Capacitor (120V), DOL (3-phase) |
| Speed | 3400 rpm (2 pole) |
| Insulation Class | B |
| Discharge | 2 inch (50 mm), Female NPT |
| Solids Handling | 2 inch (50 mm) |
| Max Flow | 100 GPM (about 6,000 GPH) |
| Max Head | 36 ft |
| Inlet | Open (no strainer), passes solids |
| Impeller | Non-clog vortex, PA+G50 (glass reinforced) |
| Mechanical Seal | Double (carbon/ceramic upper, silicon carbide lower), oil-filled (VG32, 190 cc) |
| Casing / Volute | Cast iron (FC200) |
| Motor Frame | 304 stainless steel (SUS304) |
| Shaft | SUS410 stainless |
| Cooling | External |
| Protection Devices | Auto-cut thermal protector and moisture sensor (120V 1-phase); external overload for 3-phase |
| Ingress Protection | IP68 |
| Max Submersion Depth | 33 ft (10 m) |
| Max Liquid Temp | 104F (40C) |
| Max Starts per Hour | 10 |
| Cord | 30 ft, SJOW (120V) / SOW (3-phase), 3-prong 120V plug |
| Weight | 36 lb (16.5 kg) 1-phase; 34 lb (15.5 kg) 3-phase, less cable |
| Certifications | cUL (UL778), CSA C22.2 No. 108-14 |
| Manufacturer | HCP Pump Manufacturer Co., Ltd. |
Performance Overview
The FN-21UL submersible sewage ejector pump moves up to 100 GPM and lifts to about 36 ft. Flow is highest at low lift and tapers as head rises, so size it to the vertical rise from your basin to the main.

FN-21U vs FN-21UL: effluent or sewage?
Both are 1 HP FN-series pumps, but they handle different waste. Match the pump to the solids.
| Spec | FN-21U (effluent) | FN-21UL (sewage) |
|---|---|---|
| Solids | 1-3/8 inch | 2 inch |
| Handles | Septic effluent, low-pressure sewer | Raw sewage |
| Max flow | 88 GPM | 100 GPM |
| Max head | 47 ft | 36 ft |
| Best for | Longer or higher effluent runs | Sewage basins with 2-inch solids |
Applications
- Basement bathroom and below-grade sewage basins
- Raw sewage is transferred to a gravity main or septic tank
- Simplex sewage ejector packages in homes and small commercial buildings
- Lift stations for buildings below the sewer line
- Sewage transfer from guest houses, shops, and outbuildings
Build it into a basin with a check valve and control panel from the sewage pump accessories collection.
Buy the HCP FN-21UL Sewage Ejector Pump Online from Cleanflow
For raw sewage that has to move from a below-grade basin up to the main, the HCP FN-21UL submersible sewage ejector pump passes 2-inch solids and moves up to 100 GPM on 1 HP. Cleanflow Utility Supply Company is an authorized HCP dealer, stocking and shipping HCP pumps across Canada and the continental USA, with free shipping on orders over $199.
Browse the full sewage pumps range, then add the FN-21UL to your cart or contact us to size the right pump for your basin.
Frequently Asked Questions
Does the HCP FN-21UL replace the F-21UL?
Yes. The FN-21UL is HCP's replacement for the discontinued F-21UL, keeping the 1 HP, 2-inch, 2-inch-solids sewage-ejector format with an updated FN-series motor. It comes in 120V, 240V, and 575V, so an F-21UL swaps out without changing the discharge.
What size solids does the FN-21UL pass?
Up to 2 inches (50 mm), the standard for a residential sewage ejector, through a non-clog vortex impeller. That covers raw sewage and the solids that a toilet passes.
FN-21U or FN-21UL, which do I need?
Match it to your waste. The FN-21U is an effluent pump (1-3/8 inch solids) for septic effluent and low-pressure sewer. The FN-21UL is a sewage ejector (2-inch solids) for raw sewage from a basin up to the main. If a toilet drains into the basin, use the FN-21UL.
Is the FN-21UL a grinder pump?
No. The FN-21UL submersible sewage ejector pump passes 2-inch solids whole rather than grinding them, and it needs a 2-inch or larger discharge line. To pump through a small-diameter pressure line, a grinder pump is the right tool.
Is the FN-21UL certified, and does it have motor protection?
Yes. It carries CSA C22.2 No. 108-14 and cUL (UL778), with an IP68-sealed motor. The 120V model includes an auto-cut thermal protector and a moisture sensor; the three-phase models use external overload protection.
Manuals & Documentation
✅ This item is normally regularly stocked. Shipping times may vary depending on availability. Please contact us to confirm stock and shipping times. You will receive tracking details once the item has shipped.















