Rainwater Harvesting KitRainwater Harvesting Kit
Downspout diverter with filter, spigot, and overflow.
free shipping over $75 · arrives in 3–5 days
- Fits any standard round or rectangular downspout
- Fine mesh filter keeps debris out of your barrel
- Auto-bypasses to the downspout when full
- Saves 1,300+ gallons per year from a typical roof
Field-tested performance
The details that matter
Everything that ships
- Universal diverter valve
- Mesh debris filter
- Overflow fitting
- Brass spigot
- 6 ft connector hose
- Teflon tape
Honest note: mosquitoes love an open barrel. Keep the inlet screened and toss in a mosquito dunk in summer — the filter stops leaves, not egg-laying insects.
Questions, answered
Does it include the barrel?
No — use any food-safe barrel or cistern. The kit connects your downspout to whatever storage you choose.
Is the water safe for my garden?
Roof runoff is fine for irrigating ornamentals and established plants. For edibles, water the soil rather than the leaves.
Pairs well with
Why we grow it this way
Catch what falls on your roof
A typical roof sheds over a thousand gallons of clean water a year straight into the storm drain. This diverter kit redirects it into a barrel or cistern instead. It connects to any standard downspout, filters debris, and automatically bypasses back to the downspout when your barrel is full — so it never overflows where you do not want it.
Brass spigot, mesh filter, overflow fitting, and connector hose included. Free irrigation, one afternoon of setup.
What growers say
Free water for the beds
Installed in an afternoon onto my existing downspout. Fills a 55-gallon barrel in one good storm. The auto-bypass means no messy overflow.
Works well, screen the barrel
Diverter is solid and the fittings sealed easily. Add a screen and a dunk or you will grow mosquitoes along with tomatoes.