# Little Giant

**Manufacturer:** Little Giant  
**MPN:** `508357`

The Little Giant 508357 is a 4/10 HP cast bronze submersible sump pump with a diaphragm switch. It is designed for continuous duty in aggressive water conditions and features a non-clog impeller and cold-rolled steel shaft. The pump is equipped with an integral diaphragm switch that activates at 7-10 inches of water and shuts off between 1-4 inches. It has a 3240 GPH flow rate at 5-foot lift, 22.9-foot shut-off, and 9.9 PSI. The motor is shaded pole with thermal overload protection and is CSA listed in the USA and Canada.

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Little Giant |
| Manufacturer name | Little Giant |
| Manufacturer | Little Giant |
| DimensionUnit | inch |
| GraingerSku | 3P641 |
| Extra Product Name | Little Giant |
| UPC | 010121089136 |
| UnitOfMeasure | EA |
| Voltage | 115V |
| Weight | 20.65, 1.32, 21.25 |
| WeightUnit | lbs |
| cali_prop65_message | WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| cali_prop65_orglabel | True |
| cali_prop65_warnmsgscenario | 7 |
| cali_prop65_whtlabel | True |
| countryOfOrigin | MX |
| height | 9.6 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 10.6 |
| moq | 1 |
| MPN | 508357 |
| multiple | 1 |
| qtyInStock | 14 |
| qtyInStockOverride | -2 |
| SKU | G1481505 |
| tierMinQty1 | 1 |
| tierPrice1 | 595.52 |
| url | https://www.zoro.com/little-giant-410-hp-1-12-f-submersible-sump-pump-115v-diaphragm-508357/i/G1481505/ |
| width | 10.3 |
| Part Number | 508357 |
| Product Group | BISS |
| Cord Length | 10 ft |
| Discharge NPT | 1-1/2" F |
| Housing Material | Cast Bronze |
| HP | 4/10 |
| Hz | 50/60 Hz |
| Impeller Material | Polypropylene |
| Max Head | 23.0 ft |
| Max Temp | 140 Degrees F |
| Motor RPM | 1500 |
| Motor Type | Split Phase |
| Shaft Seal | Nitrile with Carbon and Ceramic Faces |
| GPM of Water @ 5 Ft of Head | 54 |
| Diameter | 9-1/2" |
| Off Point | 1 in to 4 in |
| Item - Sump Pumps | Submersible Sump Pump |
| Impeller Material - Pumps | Glass Filled Polypropylene |
| Pump HP | 4/10 |
| Gauge/Conductor | 18/3 |
| Manufacturers Warranty Length | 2 yr |
| Pump Body Material | Cast Bronze |
| Mechanical Seal | CRB/CMC |
| Max Diameter Solids | 1/8 in |
| Shaft Seal Material - Pumps | Carbon, Ceramic |
| GPM of Water @ 10 Ft of Head | 42 |
| Voltage - Pumps | 120VAC |
| Switch Type - Pumps | Diaphragm |
| GPM of Water @ 20 Ft of Head | 7 |
| Switch Type | Diaphragm |
| Alarm | No |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G1481505 | 595.52 | 1 | 14 | 1 |
| SupplyHouse | 508357 |  |  | None | 1 |
| Megadepot | 508357 | 495.1 | 1 | None | 1 |
| PlumbersStock | 104815 | 427.56 | 1 | None | 1 |
| acwholesalers.com | 508357 |  |  | None | 1 |
| AmazonTP | B00BYFQV1M | 576.69 | 1 | None | 1 |
| Guardian | 09278847 |  |  | None | 1 |
| simsupply.com | ZO-G1481505 | 751.98 | 1 | 12 | 1 |
| pumpproducts.com | 508357 |  |  | None | 1 |
| heavydutydepot.com | 508357 |  |  | None | 1 |
| midwestapplianceparts.com | 508357-LG-P | 530.83 | 1 | None | 1 |
| kscdirect.com | LG 508357 | 584.59 | 1 | None | 1 |
| usmegastore.com | 508357 |  |  | None | 1 |
| midwestapplianceparts.com | 508357 -LG-P |  |  | None | 1 |
| ferguson.com | 1121560 | 801.75 | 1 | None | 1 |
| sumppumpsdirect.com | 508357 | 427.56 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/103000000/103358000/part_--508357---LittleGiant--1f9cdc2c77.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp