Complete DIY Rain Barrel Installation Kit!

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

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$27.95 (You save $5.00)
$5.00 (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 now 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 $5.00 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. 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

    2. Rain barrel kit

      Awesome product on 3rd Apr 2017

    3. This works well

      The set-up was easy and I filled 2 totes for 500 gallons in 2 light rain events using the smaller area of my roof so the driveway would provide the totes a safe pad to be on. The one change I would want is making it easier to attach 1 1/2 inch PVC pipe to outside nipple of the diverter. I ended up filling the space between the 2 bumpers with tightly folded paper towels As much of our summer rain comes from brief, very heavy downpours, the recommended 1 inch insert is just too small. on 29th Mar 2017

    4. diverter

      Product is nice. Wish you had one that fit a 3x4 down spout.
      Not really wanting to drill 2 large holes and have to buy an extra diverter to be able to catch most of the water
      on 18th Oct 2016

    5. Easy to Install and Use!

      Works great! Nice overflow design uses downspout to keep from over spilling. Easy install and easy cold season disconnect and winter tap hole cover. on 11th Oct 2016

    6. Everything you need

      This kit is such a good investment and helped me setup my rain barrels with ease. I loved having the drill bit, instructions, and parts to complete the drainage into the rain barrel.

      If you would like to improve things at all, I only have two suggestions:
      1) Drill bit doesn't cut a smooth hole, but was still functional.
      2) Would be nice to have a "patch-like" piece/kit in case you drilled the hole in the wrong place, or in my case: need to move from the rental and can do a quick repair on the downspout.
      on 19th Sep 2016


      Had an empty barrel I saved from a home being sold by a fellow neighbor. He gave me the barrel, so I decided to use it to create our 3rd rain barrel. First barrel I bought was "pre-fab" ($160 total). The second barrel I built through our local Master Gardners extension ($60). This free barrel, along with the Rain Brothers complete kit cost me the total price of the kit ($27.95). Without question, hands down, the Rain Brothers complete kit made creating a working rain barrel the easiest build and installation of any barrel I've done. Immediately after installing, we encountered a tropical storm, with torrential rains. Barrel filled quickly, with the remaining precipitation heading down the spout. No leaks. No issues. It just works! on 9th Sep 2016

    8. Much better design than the diverters sold at big box stores.

      Quick and straightforward installation. Reasonably priced. Works perfectly. on 30th Aug 2016

    9. Easy

      I found the installation to be as easy as shown in the tutorial. I would recommend off setting the drain plug away from the valve, for more clearance. Setting your barrel up 2 concrete blocks high should give you enough clearance to place a 5 gallon bucket under the spout. Great product! on 30th Aug 2016

    10. i dont really need to comment, because the utube demo was so simple and true.

      This was the easiest and most affordable kit i've bought in some time and will do so again in the future, given the need.....i do wish the spigot was metal. on 6th Aug 2016

  • 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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