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Roadworks – Preston Brook access (16th February – 9th March) Due to roadworks, our Preston Brook branch will only be accessible from the North via Junction 11 (M56) in this period. Please note there is no access from the South or West (the canal bridge is closed).
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Our Midland Chandlers Branches are Closing
As we prepare to close our 3 locations, we’re changing how we serve you so you can continue to access a wider range of products, expert support, and reliable delivery. This change will be complete on 20th March 2026.
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Rule 800 20SA Submersible Bilge Pump

Product code: JAB-20SA

The Rule 800SA is a fully automatic bilge pump incorporating new technology that eliminates the need for a mechanical float switch. Every 2 minutes the impeller is spun very briefly and a load se1 Read more

Description

Description

The Rule 800SA is a fully automatic bilge pump incorporating new technology that eliminates the need for a mechanical float switch. Every 2 minutes the impeller is spun very briefly and a load sensor identifies if any water is present. If so the pump will run until there is no more resistance on the impeller. If not, the pump will rest for another 2 minutes before the process is repeated.

• Connections: For 19mm (3/4") bore hose.

• Dimensions: 120mm high, 64mm x 74mm.

• Current Draw: 3.4A

• Fuse Size: 5A

• Output: Up to 50 litres/minute (11 gallons/minute) without check valve. Max. recommended discharge head 2m.

• Light, compact pump for ski-boats and small vessels.

• Tough plastic body.

• Quick release inlet strainer allows rapid cleaning.

• Low current draw helps minimise battery capacity consumption.

• Built-in Thermal Cut-Off.

• Check Valve included for Back Flow Prevention.

• Vented body to prevent air locking.

• Threaded port for easier installation and maintenance.

• No need for a separate float switch. Third wire for manual override.

• Base not interchangeable with old range but can be fitted to existing screw holes.

• Actual Weight: 0.41 kg

Specifications
Brand Rule
Series Rule 800
Automatic Bilge Pumps Yes
Maximum Pump Head 0 to 2.2 Metres
Hose Size 19mm / 3/4"
Ignition Protected Yes
Maximum Recommended Head 2 Metres (6.5 Feet)
Model 20SA
Replaces 504176 - Rule 20RS 800 Automatic Submersible Bilge Pump
Voltage Description 12V DC
Amps Description 2.8A at 12V, 4.0A at 13.6V
Length 74mm (2.9")
Height Description 111mm (4.4")
Width 64mm (2.5")
Weight 0.41kg
Material Tough Plastic Body
Primary Construction Plastic
Fuse 5A
Outlet 19mm (3/4") ID Hose
Flow Rate Description 3028 LPH (800 US GPH), 2328 LPH (615 US GPH) at 1m head, 1608 LPH (425 US GPH) at 2m head
Approvals ISO8846 marine (ignition), ISO8849 marine (bilge pump) standards, CE Certification
Consumption 3.4 a
Warranty 3 Years
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Rule 800 20SA Submersible Bilge Pump

£111.85

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£111.85 Incl VAT

8 in stock

Quantity
Check stock in store
Preston Brook

0 in stock

Willington

0 in stock

Braunston

3 in stock

 Please check with the store before travelling to avoid disappointment

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