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SMC

SMC (6850090) 685 Series PVC NSF Check Valve ; 1/2"FNPT x 1/2"FNPT Buna

  • Based on 142 reviews
Condition: New
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This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Dec 23
Order within 13 hours and 53 minutes
Available payment plans shown during checkout

Material: Polyvinyl Chloride


Brand: SMC


Outlet Connection Type: FNPT


Manufacturer: ‎SMC


Part Number: ‎6850090


Item Weight: ‎0.01 ounces


Package Dimensions: ‎4.18 x 2.21 x 1.42 inches


Is Discontinued By Manufacturer: ‎No


Material: ‎Polyvinyl Chloride


Horsepower: ‎1 hp


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: August 1, 2009


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Dec 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Don't over tighten
Work well lasts long. Just don't over tighten
Reviewed in the United States on July 16, 2022 by William

  • Not for small drain lines
It took too much water behind it to open. Used a small 3/4 inch pvc p-trap instead. Would probably work well to prevent backflow in a normally pressurized flow line.
Reviewed in the United States on April 29, 2022 by newflyer

  • Well pleased
Good deal
Reviewed in the United States on December 21, 2021 by Amazon Customer

  • A
Excellent!
Reviewed in the United States on June 6, 2021 by Mario Maraboto

  • Worked good for a replacement on my ac condensate pump
Worked good for a replacement on my ac condensate pump. Flowed more water and didn't have any backflow. Plumbed inline.
Reviewed in the United States on December 30, 2017 by robert johnson

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