Why it matters
The 6-CIA-ML is a 1/3 HP epoxy-coated cast iron pump for under-sink and laundry tub basins. Its mid-level diaphragm switch, sealed inside the pump, turns on at 4 to 7 in of water and off at 1-1/2 to 3-1/2 in.
Little Giant rates it at 2,760 GPH at 5 ft and 18 ft shut-off, for water up to 140 F. It's not recommended for traditional sump systems or general water transfer.
Who it's for, and who should skip it
Good fit if
- Replacing a sink drain pump
- Laundry tubs
- Hot laundry water to 140 F
Look elsewhere if
- Sump pits
- Water transfer
Pros and cons
Pros
- Cast iron
- Sealed diaphragm switch
- 140 F rating
Cons
- Not for sump use
- Switch not adjustable
- Pump must sit in water
Limitations to weigh
- The diaphragm switch is non-adjustable and needs the pump sitting in water to work.
Specifications
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Material | Cast Iron | Retailer |
|---|---|---|
| Dimensions (seller) | 9.5"L x 7.5"W x 6"H | Retailer |
| Product weight | 17 lb | Retailer |
| Max flow (maker) | 46 GPM | Retailer |
| Max head / lift (maker) | 18 ft | Retailer |
| Voltage | 115 V | Retailer |
| Horsepower | 1/3 HP | Retailer |
| Model number | 506160 | Retailer |
| Warranty | 2-years limited from date of purchase | Retailer |
| Discharge | 1.5" FNPT | Retailer |
| Switch | Diaphragm switch | Retailer |
| Power cord | 10' cord | Retailer |
| Housing | Epoxy-coated cast iron | Retailer |
Alternatives worth comparing
More sewage & effluent pumps we cover
- Simer 2925B Laundry Sink Pump
- Wassermann 4TMS 1 HP Septic Effluent Pump
- ShuDwrpu 1 HP Stainless Grinder Pump
- Aquastrong SEP100CA 1 HP Grinder Pump
All sewage & effluent pumps, compared in one table · Every Little Giant product we cover
Final verdict
A tough replacement pump for drain basins.
Where to buy
Our links open this exact model's product page. Prices and stock change; check what's included before you order.
Each button opens this exact model. We may earn a commission on tracked links; it never changes what we publish. Disclosure