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Marquis Spa 1 Inch On Off Neck Waterfall Valve Insert 350-6326

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Bulk discount rates

Below are the available bulk discount rates for each individual item when you purchase a certain amount

Buy 10 - 19 and get 5% off
Buy 20 - 49 and get 10% off
Buy 50 - 89 and get 15% off
Buy 90 - 1000 and get 20% off
  • Marquis Spa 1 Inch On Off Neck and Waterfall Valve Insert MRQ350-6326
  • Marquis Spa 1 Inch On Off Neck And Waterfall Valve Insert
  • MRQ350-6326
Now: $4.97
RRP: $6.98


6326 top viewMarquis Spa 1 Inch On/Off Neck and Waterfall Valve insert 350-6326 or MRQ350-6326. This valve stem is plain white, but you can't see it anyways - it goes inside the valve.

Get all your hot tub valve parts at Hot Tub Outpost.

Here is the valve stem measurement:

valve stem measure
350-6326 or MRQ350-6326

Gaskets that fit this valve if needed include:

WWP805-0127SD  (1 required)


WWP805-0114  (2 required)


1 inch on/off neck and waterfall valve insert
compatible with most marquis spas 350-6326

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Warranty Information

Manufacturer's Warranty
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6 Reviews

  • 5
    Waterfall valve

    Posted by Gerald on 18th May 2020

    Had not been able to turn my waterfall off for a long time. Put a towel over it. Finally ordered this valve core and fixed it! Easy fix!

  • 5
    As always, great parts and service from HT Outpost

    Posted by Unknown on 2nd Sep 2019

    As always, great parts and service from hot tub outpost. In this day of phone trees and customer service emails with no response, it's nice to have hot tub outpost with its old fashioned personal customer service and great array of parts.

  • 4
    Would be 5 But

    Posted by Bruce Newsome on 26th Jul 2019

    Exactly what I needed for my waterfall valve - Just wish it would last longer - The rubber on the valve comes off only after a few months of use. But for the price I purchase 2 at the time.

  • 5
    Perfect Fit

    Posted by Unknown on 12th Mar 2019

    This was just what I needed and it fit like a glove (great price too). Installed it in 3 minutes on my LA Spa and was ready to soak.

  • 5
    Just perfect!

    Posted by Mark Sanderson on 4th May 2018

    Part was exactly what I needed at a good price and delivered quickly!

  • 5
    Exact fit

    Posted by Cosmo on 27th Apr 2017

    Said made for Marquis Spa, but exactly what I needed for my Barefoot/Hawkeye spa. Shipping was on time.

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