Backwater valves in comparison
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Last updated on 04.10.2026
1
Oatey 43904 PVC Backwater Valve, White, 4 Inch
Oatey
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9,9
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2
Horizontal PVC Plastic Sewage Drain Check Non-Return Valve Backwater Prevented 110mm
PLUMBING4HOME
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9,8
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3
Cinsda 4" PVC Backwater Valve, 4 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow
Cinsda
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9,7
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4
PVC Plastic Check Sewage Drain Non-Return Double Flap Valve Backwater Prevented 110mm
Karmat
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9,6
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5
HYDRO MASTER PVC Backwater Valve, (2 Inch)
HYDRO MASTER
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9,6
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6
Tondiamo 1 Pcs 4" PVC Backwater Valve Backflow Preventer Valve, White PVC
Tondiamo
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9,5
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7
4 Inch Pvc Backwater Valve,Sewer Check Back Flow Preventer Drain Backflow Preventer Valve,Prevent Sewage And Rainwater From Flowing Backflow
UYHSEI
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9,5
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8
4" White PVC Backwater Valve, Sewage and Rainwater Backflow Preventer
Sevenjungle
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9,5
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9
Zejoot PVC Backwater Valve,3 inch Drain Backflow Preventer, Backflow Preventer Valve Prevents Sewage and Rainwater from Flowing Back
Zejoot
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9,3
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10
Jones Stephens Corp - 1-1/2 Pvc Backwater Valve
Jones Stephens
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9,3
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You might also be interested in these backwater valves.
Elbow Wall Mounted Anti Flood 50mm Backwater Check Valve Backflow Prevention
Anti-flood devices protect interiors from flooding caused by sewage backflow;
£ 40.99
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3" PVC Backwater Valve,4-Inch Drain Backflow Preventer Valve Prevent Sewage and Rainwater from Flowing Back
【Prevent water backflow】This PVC backwater valve designed for connecting 4-inch PVC drains in the drainage system, this valve prevents the backflow of water in the pipeline due to pressure reduction or other potential causes.It's an effective backflow preventer valve that specifically designed to protect your premises from the potential threats of sewer backflow.
£ 36.68
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To the product (1 offer)
Canplas 223284W PVC Backwater Valve, 4-Inch
Protection against the backflow of sewage and storm water
£ 99.52
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To the product (1 offer)
Oatey 43908 Backwater Valve, White, 6 in
6 in. PVC backwater valve
£ 339.65
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To the product (1 offer)
Legend Valve 202-251 1-1/2" S-640 Backwater Valve
Constructed of ASTM D1784 virgin resins that will not rust, corrode or pit.
£ 47.09
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Buffalo Retro fit -Non Return Valve to fit 6 inch (150mm) Sewerage Pipe. Rodent and Water Stop.
Fits: 136mm - 152.5mm internal diameter of pipe (6 inch /150mm).
£ 104.99
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PVC Plastic Check Flap Valve Self Activating End Drainage Backwater 200mm
Installed at the end of 200mm sanitary sewage pipes leading storm water to ditches or rivers; Prevents against rodents entering building interiors through the sewage and other sanitary systems; Secure the lower floors against flooding caused by back flow of storm water and sewage; High quality PVC Plastic and stainless steel ending, sun light/high temperature resistance
£ 122.99
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PVC Backwater Valve for Drainage Systems | 1-1/2", 2", 3" Sizes | Anti-Backflow Preventer for Sewage, Domestic & Industrial Use(3 inch)
RELIABLE For SEWAGE PROTECTION: PVC Backwater Valve forestalls wastewater returning to your property, keeping drainage systems safe in residential, commercial or industrial setups
£ 30.58
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PVC Backwater Valve to Prevent Sewage Issues Suitable for Irrigation, Horticulture, and Water Treatment (3 inch)
[EFFECTIVE SEWAGE BACKFLOW PROTECTION] This PVC backwater valve is engineered to effectively prevent sewer backflow, keeping your environment safe from unwanted sewage incidents while offering peace of mind.
£ 27.18
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High performance PVC Backwater Valve to Prevent Sewer Issues Choice for Various Drainage Applications (3 inch)
[LAYERED PROTECTION] Safeguard your premises with this PVC backwater valve designed to prevent sewage backflow, reliable protection and peace of mind.
£ 26.35
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PVC Backwater Valve 1-1/2", 2", 3" DN40 DN50 DN80 White Anti-Backflow Drainage Valve for Sewage Prevention in Domestic, Commerci(3 INCH)
LAYERED PROTECTION AGAINST For SEWAGE BACKFLOW: This PVC backwater valve is expertly engineered to sewer backflow, your premises are shielded from potential For sewage threats while providing peace of mind with its reliable functionality.
£ 29.69
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110mm Non Return Valve Backflow Flood Prevention Single Stainless Steel Flap
Durable Construction: Crafted from robust Stainless Steel, ensuring longevity and resistance to corrosion
£ 50.50
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