• DekoRRa Mock Rock Model 111 Fake Rock Cover
  • DekoRRa Mock Rock Model 111 Fake Rock Cover
  • DekoRRa Mock Rock Model 111 Fake Rock Cover
  • DekoRRa Mock Rock Model 111 Fake Rock Cover
  • DekoRRa Mock Rock Model 111 Fake Rock Cover
  • DekoRRa Mock Rock Model 111 Fake Rock Cover
  • DekoRRa Mock Rock Model 111 Fake Rock Cover
  • DekoRRa Mock Rock Model 111 Fake Rock Cover
  • DekoRRa Mock Rock Model 111 Fake Rock Cover
  • DekoRRa Mock Rock Model 111 Fake Rock Cover
  • DekoRRa Mock Rock Model 111 Fake Rock Cover
  • DekoRRa Mock Rock Model 111 Fake Rock Cover
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DekoRRa Mock Rock Model 111 Fake Rock Cover

Rated 4.00 out of 5 based on 5 customer ratings
(5 customer reviews)


If hiding that ugly septic tank lid out in your yard is on your “To Do” list this Model 111 Mock Rock may be the perfect fit!  This model has septic lids quivering in fear of being forever blended into the natural landscape.


Add Vents

Venting Is Important. View Venting Guide Here. Vents are color matched & installed.

Add Heat

Added freeze protection. Requires 120v outlet.



Let’s face it.  When it comes to yard and landscape ugliness the septic tank is a tough act to follow.  This fake rock cover offers a fast and easy solution to those exposed septic tank blues. And the lightweight design means moving these fake rocks off the tank is easy to do. No worries if the septic needs pumping or TLC, just pull out the included ground stakes, remove the faux rock and access the tank.

DekoRRa 111 Mock Septic Rock

Dekorra Mock Rock 111 Septic CoversIMPORTANT: Please use the interior dimension charts below for sizing information.

Homeowners with private sewer systems all face a similar dilemma, those ugly concrete and plastic septic risers poking up from under the ground for all to see. And the icing on the cake is that they always manage to be placed in the least desirable, and most obvious and easily seen areas of the yard. The Model 111 fake rocks were designed specifically to help homeowners camouflage these unattractive septic caps. The rounded shape makes it ideal for hiding a wide variety of tank diameters, both with and without electric junction boxes mounted on the side.

Model 111 features incredibly realistic colors and textures which are molded into the exterior walls of the mock rock, making it totally maintenance free. You will never have to paint this rock or worry about it cracking or becoming damaged from string trimmers or any kind of wicked weather that mother nature throws its way. Advanced UV inhibitors are incorporated into the design, creating total protection against sun fade and sun damage.

The gritty, natural, and rugged appearance blends in well with any type of landscaping. And with for natural colors to choose from, it’s easy to take the style that will blend in well with the natural surroundings in your yard. Durable ground stakes are included and are easily placed through flanges molded into the base of the rock. This secures the edges to the ground, keeping the fake rocks in place on windy days.

This is the perfect fast and easy to use solution for hiding ugly septic tank risers and blending them into the landscape.

  • Made in USA of 100% recycled polymers.
  • Rugged string trimmer proof design will not crack or break.
  • Set it and forget it, fake rocks are fast and easy to use.
  • Total UV protection can withstand any type of weather.
  • Maintenance free design never requires any TLC.
  • Hides ugly septic’s while enhancing curb appeal and adding character to landscaping.
  • Includes ground stakes and may be ordered with optional vents.

Note: when covering any kind of septic component is important to consider proper venting. If the current cover on the septic riser is vented, then it’s a good idea to vents the artificial septic rocks to allow for airflow. Vents can be purchased using the drop-down menu next to the add to cart button. They are installed prior to shipment and will be painted to match the color of the rock.

Dekorra Mock Rock 111 Faux Rocks
Fake Rocks Septic Covers Model 111

DekoRRa Artificial Rock Model 112

Additional information

Weight 5 lbs
Select Color

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5 reviews for DekoRRa Mock Rock Model 111 Fake Rock Cover

  1. Rated 4 out of 5

    Carrie Ohstenburg

    Only giving it 4 stars because it was larger than I wanted over our septic tank but the smaller Model 112 and Model 108 would not have worked. Our tank is just too tall. I piled up some mulch around the sides to hide the height a bit. it really looks nice now. Very rock like.

  2. Rated 5 out of 5

    Rose Marsh

    They are not kidding about being RocksFast. I bought 2 rocks, the Model 108 and Model 111 in sandstone. They were delivered the day after I ordered! There was an initial shipping mix-up on the model of one of the rocks, but customer service was very quick to correct the order and I was allowed to keep the rock that had been mistakenly delivered. Very nice of them. The sandstone color of these goes great with our other landscaping. They look realistic and have stayed securely in place through some high winds. We have them covering a multi-chamber septic area – one on each lid. I am very happy with the product and wouldn’t hesitate to order from RocksFast again.

  3. Rated 1 out of 5

    Lonnie Fitz

    not happy. it was too small to fit my septic tank

  4. Rated 5 out of 5

    James Gorecki

    I’m giving it 5 stars because not only did they help me with determining the size of the boulder I needed but I received my boulder in two days and it worked out great. It is so realistic looking and much more economical than if I had purchased it from my local garden center. Great quality and workmanship. So glad I shopped with Rocksfast.

  5. Rated 5 out of 5

    Kristen C

    I’m giving 5 stars for a few reasons: the rock looks great + they helped me with the sizing (I was actually going to buy a rock too large and they advised that a smaller, cheaper rock would work and it did!) + it was super fast getting to me + other websites have the nerve to advertise all sales final where Rocksfast made it clear they would take returns if the fit wasn’t right. Clearly I made the right choice with Rocksfast 🙂

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