Complete DIY Rain Barrel Installation Kit!

DIY Rain Barrel Construction and Installation Kit (w/ Downspout Diverter)

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$29.50 (You save $3.45)
$6.00 (Fixed shipping cost)
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  • Product Description


    Note: If ordering bulk quantites of this kit (10+) please contact us for discounted bulk pricing and best shipping quote! 

    Note: The flexible fill hose included with the DIY Rain Barrel Construction and Installation Kit is a 31-inch accordion-style hose which cannot be cut to length, but can be extended to desired length for installation.

    We at Rain Brothers, LLC have been designing, constructing, and installing rainwater harvesting systems -- both residential- and commercial-scale -- in the Ohio Region for nearly a decade, and we have used virtually every rainwater downspout diverter on the market. With the diverters on the market, there are recurring problems, including:

    1) Difficult installation
    2) Insufficient inlet size into the barrel/tank
    3) Insufficient overflow, causing diverter to back up drainage
    4) Working only with the smallest downspouts (i.e., 2"x3")

    Our DIY Rain Barrel Construction and Installation Kit addresses these issues and offers a thoughtful, high-quality, affordable solution.
    For under $30, you get:

    *Three hole saws for drilling/installing valves and downspout diverter (2-1/8", 1-1/2", 1-1/4)
    *3/4" garden hose spigot for connection to irrigation hose
    *3/4" drain plug with cap for quick draining of barrel, linking barrels, or adding a second valve
    *Two threaded rubber seals for water-tight, easy installation of valve and drain plug
    *1-1/2" rubber seal for water-tight inlet into tank/barrel
    *31" of flexible hose to link barrel/tank to downspout diverter
    *Rubber "Flexi-Fit" downspout diverter choose either Standard (2x3" downspouts), 3x4" Rectangular, or Round (3" or 4" round downspouts). Click here for more information on the Round Downspout Diverter.
    *A winterizing cap for quick and easy winterization of your downspout.

    Flexi-Fit Downspout Diverter installs in three easy steps:

    1) Drill hole in downspout (hole saw included in kit).  For 2"x3" downspouts, drill hole in front of downspout.  For 3"x4" downspouts, drill hole in the side of the downspout (3" side).  Ensure hole is level with inlet on barrel.  Click here for more information on the Round Downspout Diverter.
    2) Insert diverter and fasten diverter to downspout with included self-tap screws
    3) Attach fill hose to diverter and into barrel, and start collecting rain!

    Installation Guide


    Shipping is only $6.00 per kit for U.S. orders!  International orders will be charged an additional shipping charge, depending on the order size and address, after an order is placed.


    Installation Video


  • Product Reviews


    Write A Review

    1. 4.5 would be more accurate; 5 but for a single issue.

      The instructions are absolutely EXCELLENT. Pretty much no-fail. Tools are included, not to mention that any phone calls are answered and returned by helpful HUMANS, makes this NEAR perfection. Been using these diverters for 3 years and likely will buy again (I still have 3 wasted downspouts!)

      My ONE issue is the set-up at the spigot and leaking at both the washer and where the spigot attaches. After one summer, it leaked a bit and I had to turn it upside down and barely touch it when opening or it would leak again. As of now it's doing well again with a new application of thread tape and some silicone. Thread tape alone worked but only temporarily. Everything else is just so perfectly functional about this that really sticks out for me and it should be improved. I'll be installing a second one in a closed top in the next few weeks so we shall see. May the stock spigot set-up function better than the first one!

      When my barrels have lids or a large top opening (3/4 of mine do), I just go the more secure route and use a bulkhead from the farm store. That's impossible with closed top because you have to have a pipe wrench inside to tighten bulkheads.
      on 17th Apr 2018

    2. Really good and easy except for one thing

      Our sewer bills have skyrocketed and are based on water usage, whether or not it is used inside (toilets, showers, cooking, etc.) or outside (gardens). So I figured on setting up a rain barrel for garden usage. Barrel cost only $15, and the kit about $30 after taxes and shipping. Very good instructions. The only part I had a very, very hard time with was inserting the tube from the downspout into the barrel. Tried heating it, vaseline, etc., and ended up using the ol' standby duct tape. After the first rainstorm the barrel filled up to the top! So I really do recommend it and will probably set up another, but maybe if I insert the tube before putting the fitting in barrel it might work better. on 8th Apr 2018

    3. best deal out there

      Easy to install, simple instructions, and all the parts you need in one package. No other package I have seen has it ALL, and the bigger packages that include a barrel are way overpriced. The only things you don't get with it are the barrel and the rain. They delivered to Canada with speed too! I will buy again. on 13th Aug 2017

    4. DIY Rain Barrel kit with diverter

      Excellent instructions. Everything you need to install on your own barrel. Love this product! on 8th Aug 2017

    5. Save time and money, get this kit

      The kit went together very easily. I built two barrels in less than 30 minutes. I got the main it and also two rubber home's and connected the two barrels with the flexible tube. I priced this out with PVC from the hardware store and it cost we'll over $70 not including the diverter for the down spout. With this system it cost me about $35 and includes the downspout diverter. Well worth it. Very good products. on 7th Aug 2017

    6. Quality product by a Quality Company!

      Company was excellent to deal with. The parts I ordered arrived very quickly and in excellent condition! Parts were installed and are in perfect working order. Thanks for the excellent and products and service you provide!
      on 31st Jul 2017

    7. Works great!

      I hooked up my first rain barrel last year, it collected water just fine. What I didn't realize was how quickly it would fill up and it was constantly overflowing. This spring I was in the market for a diverter. Not only for this rain barrel but 2 new ones that I was installing. After looking at many different diverters I came across this one by Rain Brothers. After reading the reviews and seeing that it was priced below other diverters I decided to go with this one. I like the fact that I could order this kit along with only the pieces I needed to connect my other 2 barrels. Installation was pretty simple, except I have stainless steel down spouts so I had to cut through them with a Dremmel Tool using a cutting wheel & a grinding wheel. All 3 are hooked up and working great! on 27th Jun 2017

    8. Just as advertised

      he kit came quickly, I installed it in about ten minutes. We had a significant overnight storm that completely filled the rain barrel. Overflow worked as designed. What more need i say. Thaks,
      Rain Brothers!.
      on 7th Jun 2017

    9. love it!

      easy to install and works beautifully. i added a second barrel, which was also very simple. i collected 110 gallons in a few hours. i may even add a 3rd barrel. on 25th May 2017

    10. Super Kit!

      The tools are provided, the instructions are clear, the pieces fit and, after a year use they work great. I installed the kit in a greek olive barrel and attached it to my drain spout last summer. we In the fall I removed the connection to the spout, installed the plug provided and turned the barrel upside down. This spring it took a minute to reconnect and and we're off again.

      I've just received 12 more kits so I can introduce the idea to my town, here in Vermont, so we can use the barrels to reduce storm water run-off. I've looked at and tried other methods and this is the most cost effective and simple way to go.
      on 25th Apr 2017

  • Product Videos

    • How to Build and Install a Rain Barrel in 5 Minutes for Less Than $30
      In this video, we explain how to build your own rain barrel us...

    How to Build and Install a Rain Barrel in 5 Minutes for Less Than $30

    In this video, we explain how to build your own rain barrel using our Rain Barrel DIY Construction and Installation Kit. This product is available here: . For more information, please visit our website at or Thanks for watching!
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