Water & Flood Detectors
261 productsUpdated April 2026

Marsh
Marsh ENSIGN ULTRA 4 Person Sewage Treatment Plant with Pressure Switch Beacon Alarm - Pumped Outlet
£6345.44
2 offers

Triton
Triton Controls LR02-IS 20m ATEX Float Switch
£82.97
2 offers

Marsh
Marsh ENSIGN 10 Person Sewage Treatment Plant with Pressure Switch Beacon Alarm - Gravity Outlet
£3078.12
2 offers

Marsh
Marsh ENSIGN ULTRA 10 Person Sewage Treatment Plant with Pressure Switch Beacon Alarm andamp; 250mm Riser - Gravity Outlet
£639.13
2 offers

Marsh
Marsh ENSIGN ULTRA 10 Person Sewage Treatment Plant with Beacon Alarm - Gravity Outlet
£22.07
2 offers

Marsh
Marsh ENSIGN ULTRA 10 Person Sewage Treatment Plant with Pressure Switch Beacon Alarm andamp; 500mm Riser - Pumped Outlet
£34.42
2 offers

Marsh
Marsh ENSIGN ULTRA 10 Person Sewage Treatment Plant with Pressure Switch Beacon Alarm andamp; 500mm Riser - Gravity Outlet
£1212.91
2 offers

Marsh
Marsh ENCO 10 Person Sewage Treatment Plant with Pressure Switch Beacon Alarm andamp; 500mm Riser andamp; 200mm AVR Unit - Gravity Outlet
£3217.84
2 offers

Marsh
Marsh ENCO 10 Person Sewage Treatment Plant with Pressure Switch Beacon Alarm andamp; 500mm Riser - Gravity Outlet
£3073.75
2 offers

Marsh
Marsh ENSIGN 12 Person Sewage Treatment Plant with Pressure Switch Beacon Alarm andamp; 750mm Riser andamp; 300mm AVR Unit - Gravity Outlet
£3599.15
2 offers

Marsh
Marsh ENSIGN ULTRA 10 Person Sewage Treatment Plant with Pressure Switch Beacon Alarm andamp; 300mm AVR Unit - Pumped Outlet
£75.20
2 offers

Ordnance Survey
Ordnance Survey OS Map of St David's & Haverfordwest: Landranger 157 - Weatherproof
£16.99
2 offers

Marsh
Marsh ENSIGN ULTRA 12 Person Sewage Treatment Plant with Pressure Switch Beacon Alarm andamp; 1000mm Riser andamp; 300mm AVR Unit - Gravity Outlet
£15.29
2 offers

Marsh
Marsh ENSIGN 10 Person Sewage Treatment Plant with Pressure Switch Beacon Alarm andamp; 250mm Riser - Pumped Outlet
£3783.98
2 offers

FloPlast
FloPlast Stormsaver Level Sensor
£443.17
2 offers

Coopers of Stortford
Lions Head Water Feature
£169.99
2 offers

Marsh
Marsh ENSIGN 4 Person Sewage Treatment Plant with Pressure Switch Beacon Alarm andamp; 250mm Riser andamp; 200mm AVR Unit - Gravity Outlet
£2931.13
2 offers

Marsh
Marsh ENSIGN 6 Person Sewage Treatment Plant with Pressure Switch Beacon Alarm andamp; 250mm Riser - Gravity Outlet
£2765.22
2 offers

Marsh
Marsh ENSIGN 4 Person Sewage Treatment Plant with Pressure Switch Beacon Alarm andamp; 1000mm Riser andamp; 200mm AVR Unit - Gravity Outlet
£2983.52
2 offers

Marsh
Marsh ENSIGN 8 Person Sewage Treatment Plant with Pressure Switch Beacon Alarm andamp; 1000mm Riser - Gravity Outlet
£3081.04
2 offers

Marsh
Marsh ENSIGN 6 Person Sewage Treatment Plant with Pressure Switch Beacon Alarm andamp; 750mm Riser - Gravity Outlet
£2800.15
2 offers

Marsh
Marsh ENSIGN 16 Person Sewage Treatment Plant with Pressure Switch Beacon Alarm andamp; 750mm Riser - Gravity Outlet
£4037.22
2 offers

Marsh
Marsh ENSIGN ULTRA 4 Person Sewage Treatment Plant with Pressure Switch Beacon Alarm andamp; 1000mm Riser - Gravity Outlet
£5686.16
2 offers

Marsh
Marsh ENSIGN 8 Person Sewage Treatment Plant with Pressure Switch Beacon Alarm andamp; 250mm Riser - Pumped Outlet
£3609.34
2 offers