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Due to an extreme amount of orders. Phone-in customer service is not available. Email inquires will be answered within 24 hours. Due to the pandemic, Prier's production is delayed. Expect extended lead-times on some items.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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