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Replacement Black Water Tank Outlet Valve for 2008 Keystone Cougar RV

Question:

Hi my name is Dale, I have a 2008 cougar by Keystone. I have a Bristol valve on my black water tank 3 in. I have not taken measurements of the diameter of the valve or the holes yet. Im just wondering if all of the 3 in Blackwater valves made by Bristol over the years are compatible with the ones that are available today. My problem is I believe I blew the O-ring out on the pull handle as when my tank gets too full it starts leaking water from there.

1

Helpful Expert Reply:

According to my LaSalle/Bristol representative, neither the valve size itself nor the spacing of the holes for the mounting hardware have changed over the years. The mounting holes are 3.73 inches apart center to center, which is right between 2-5/8 and 2-3/4 inches which is industry standard. The Assuming that your current valve body is for a 3 inch line, the # 34439240 you referred to will work great.

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helpful expert reply by:
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Mike L

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