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Phone-in customer service is not currently available. Email inquires will be answered within 24 hours. Due to extreme supply chain issues. We can not and will not guarantee delivery dates on any Ground shipments. Expect extreme lead-times on all Royer products. div>

Canplas Backflow Preventers

Canplas Backflow Preventers

Protect your building and its contents with a clean check backwater valve from Complete Plumbing Source. A PVC sewer backflow preventer is designed to prevent sewer from re-entering your drainage systems. We offer PVC backwater valves in 3", 4" and 6".

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  1. Canplas 123283-2A Replacement Flapper for 3" Plastic Backwater Valve
    Canplas 123283-2A Replacement Flapper for 3" Plastic Backwater Valve
    $11.00
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  2. Spears S475P 4" PVC SCH40 DWV Backwater Valve, Soc x Soc
    Spears S475P 4" PVC SCH40 DWV Backwater Valve, Soc x Soc
    $51.00
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  3. Spears S375P 3" PVC SCH40 DWV Backwater Valve, Soc x Soc
    Spears S375P 3" PVC SCH40 DWV Backwater Valve, Soc x Soc
    $45.00
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  4. Spears S1580-30F 3" Threaded PVC Spring Assisted Swing Check Valve, FIP x FIP
    Spears S1580-30F 3" Threaded PVC Spring Assisted Swing Check Valve, FIP x FIP
    $70.00
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  5. Spears S1580-30 3" PVC Spring Assisted Swing Check Valve, Soc x Soc
    Spears S1580-30 3" PVC Spring Assisted Swing Check Valve, Soc x Soc
    $70.00
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  6. Spears S1580-20F 2" Threaded PVC Spring Assisted Swing Check Valve, FIP x FIP
    Spears S1580-20F 2" Threaded PVC Spring Assisted Swing Check Valve, FIP x FIP
    $38.00
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  7. Spears S1580-20 2" PVC Spring Assisted Swing Check Valve, Soc x Soc
    Spears S1580-20 2" PVC Spring Assisted Swing Check Valve, Soc x Soc
    $39.50
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  8. Spears S1580-15 1-1/2" PVC Spring Assisted Swing Check Valve, Soc x Soc
    Spears S1580-15 1-1/2" PVC Spring Assisted Swing Check Valve, Soc x Soc
    $29.00
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  9. Canplas Endura 3925XTA03 Interceptor Grease Trap 25 GPM
    Canplas Endura 3925XTA03 Interceptor Grease Trap 25 GPM
    $450.00
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  10. Canplas Endura 3925A02LOS Interceptor Grease Trap 25 GPM/50 LBS
    Canplas Endura 3925A02LOS Interceptor Grease Trap 25 GPM/50 LBS
    $555.00
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  11. Canplas 3920AX6 6" Riser for 15-20-15 GPM Grease Traps
    Canplas 3920AX6 6" Riser for 15-20-15 GPM Grease Traps
    $225.00
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  12. Canplas 123283-3A Replacement Cleanout Lid for 3" ABS Backwater Valve
    Canplas 123283-3A Replacement Cleanout Lid for 3" ABS Backwater Valve
    $9.20
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