HOLIDAY ALERT

We will be closing at 12 PM EST on Friday, April 18th, in observance of Good Friday and Easter.
Any orders placed after this time will be processed on Monday, April 21st.
Have a happy Easter weekend!

Weather Closure Alert

Due to severe weather, our White House, Tennesee location will be closed Wednesday the 19th.

All shipments from this location will resume on Thursday the 20th. Thank you for your patience!

WE WANT TO HEAR FROM YOU!

We strive to make improvements that make it easier to serve your boating needs.
We’d like to know more about you and how we can do the best job possible for you.
Please take the time to complete this brief 3-5 minute survey to help us serve you better.

FREE Ground Shipping on Orders over $100!  Exceptions apply - see details.

Toggle Nav
  • Sign In
  • Create an Account
My Cart
Search
Menu
Account
Settings
Tank Monitor System Components

Tank Monitor System Components

4 Items

Set Descending Direction
View as List Grid
  1. Dometic holding tank level indicator cap - Sealand 313000350
    TWIII Level Indicator Cap with Vent | Dometic 313000350
    DOMETIC-313000350
    Qty In Stock: 10
    Brand: Dometic

    22 inch vented holding tank probe cap provides tank level readings for Dometic TW and DTM tank monitors.

    Learn More
    MSRP: $255.99 $190.02
    Add to Wishlist
  2. Large Image
    22 inch DTM Flex Probe Kit | Dometic 385230930
    DOMETIC-385230930
    Qty In Stock: 8
    Brand: Dometic

    Replacement 22 inch probe for Dometic TankWatch 4 and DTM probe caps.

    Learn More
    MSRP: $77.99 $74.08
    Add to Wishlist
  3. Dometic 313000355 TWIII Level Indicator Cap Without Vent
    TWIII Level Indicator Cap without Vent | Dometic 313000355
    DOMETIC-313000355
    Qty In Stock: 15
    Brand: Dometic

    22 inch non-vented holding tank probe cap provides tank level readings for Dometic TW and DTM tank monitors.

    Learn More
    MSRP: $255.99 $190.02
    Add to Wishlist
  4. Small
    DTM04 Waste Tank Monitor System | Dometic 360604002
    DOMETIC-360604002
    Qty In Stock: 3
    Brand: Dometic
    Waste tank panel and 22 in. tank probe cap displays 4 stages of tank capacity with color coded LED panel illumination. Learn More
    MSRP: $577.99 $377.02
    Add to Wishlist

4 Items

Set Descending Direction
View as List Grid
My Wish List
Last Added Items
  1. Add to Cart
    Remove This Item
Go to Wish List
You have no items in your wish list.
© 2025 Marine Parts Source. All Rights Reserved.