Call our friendly team for help and advise on 01388 537 050

Buy With Confidence

We are an authorised seller for major manufacturers.

Best Price Promise

If you find the same product cheaper, we'll match it.

Same Day Dispatch

On all orders placed before 4pm when items are in stock.

Grundfos Unilift AP50B.50.08.A1V Sewage Pump with Float

Next Day Delivery

When items are in stock and ordered before 4pm

Secure Payment

Multiple payment gateways

Direct Drainage Reviews

The Grundfos AP50B-50.08 A1 is a fully automatic sewage submersible pump, used in crude pump stations only, complete with 10m integral float switch. The pump has a 0.80kW 240V 1Ph 50Hz motor and floatswitch as standard. 

AP50B Spec Sheet

The Unilift AP50B is a single stage pump with vortex impeller. All Unilift AP pumps are made of stainless steel with a composite baseplate. The range is designed for submerged operation, either free standing on the base plate or installed on an auto coupling. The base plate is clipped on by four clips which are hidden under the composite ring at the top of the pump housing - this ring prevents dirt from sticking to the clips.


    • Water and rainwater in horticulture
    • Water from rivers and lakes
    • Rainwater, drainage water and water from flooding
    • Water for filling/emptying containers, ponds, tanks, etc
    • Effluents from showers, washing machines and sinks below sewer level
    • Pool water
    • Ditch drainage water
    • Groundwater (lowering applications)
    • Domestic effluents from septic systems
    • Liquids containing fibres from light industry, laundries, etc
    • Effluents from viaducts, underpasses, etc
    • Drainage water from garage sprinkler systems

Manufacturer Grundfos
Guarantee 1 year guarantee
Electrical supply 230V
AC Power Single Phase
Cable length 10m
Flow Rate 400 Ltr/min
Max Head 11m
Pump Operation Automatic (with float switch)
Water type Dirty Water
Pump Type Submersible
Switch Float Switch
Duty Type Commercial
Submersible vs Surface Mounted Submersible
Connection Size 2 inch

You may also need

Charles Austen ET60 Linear Air Pump
Charles Austen ET80 Linear Air Pump

Related articles

Oil tanks, also known as fuel oil storage tanks, are containers used to store various types of liquid fuels, including...
Sewage systems, also known as wastewater or sanitation systems, are essential for the proper disposal and treatment of human waste...
Microorganisms will feed on any organic matter e.g. dead animals, waste food, sewage etc. These microorganisms need oxygen to live,...

Fast Delivery To Your Door

We process orders the same day so you can trust us to get your order to you without delay.