Go to the FDM Canada Site
For Existing 4 Inch Corrugated Systems (pipe not included)
TORRENTIAL RAIN™ 4 in. Downspout Upgrade Kit for Existing Systems
$86.25
All orders ship within 7 days
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Product Details
Dimensions and Specifications
For existing systems (pipe not included)
Kit includes:
- Downspout Leaf Filter and Clean Out
- FDM’s Not Quite a 90 fitting for maximum flow rate.
- 4 in. x 12 in. Dual Wall Riser for Clean Out
- FDM 4 in. Pop-up Emitter
- HDPE 4″ Corrugated to 4″ PVC Coupler with fasteners
- 4oz Fabric for Drain Basin and Pop-up Emitter 3 ft x 4 ft
Leaf Filter Clean Out Slides inside:
- 4″ Corrugated single wall pipe
- 4″ Dualwall corrugated pipe
- 4″ PVC SDR 35
- 4″ PVC Schedule 40
- 4″ PVC Schedule 30
- 4″ Triple Wall septic field pipe
Black is recommended in the Northern Climates because the sun’s radiant energy heats the black vented Cleanout during the winter to help cope with freeze ups. It doesn’t prevent freezing. It helps with the thawing process of frozen downspouts.
Product Videos
Leaf Filter Options: How to Connect
Underground Buried Downspout - Gutter Adapter VENTED CLEAN-OUT Leaf Filter 🍃
How to Install Underground Buried Downspout System - Step by Step Tutorial
How to know if you have a 2"x3" downspout or a 3"×4" gutter downspout when fitting any adapter DIY
Best Underground Downspout Drain for 2023
How to Install a Clean Out on a Gutter Downspout
How To Vent Underground Buried Downspout Line in 3 locations, Phase 1, 2 and 3 Easy Do It Yourself
Customer Reviews
After we bought our 100-year-old house, I did a lot of research before attempting to fix our horrible basement flooding. After every medium to heavy rainfall, our entire basement would be covered with 3 to 6 inches of water. I spent days pumping water after every rain shower. French Drain Man was easily the best resource I could find, from their excellent help videos to their superb products. We called several businesses to help us and they all wanted $3,500 or more for minor fixes. Most said we had to pay well over $10,000 to add additional sump pumps and French drains along the all basement walls. After less than $1,000 and three days of work (following the advice of French Drain Man and using my favorite FDM products), I stopped our basement flooding. It's now bone dry and has been that way for almost one year. I especially love their popup emitters and downspout leaf filters. Definitely worth the extra cost, and shipping was fast. I could not be happier with FDM!
I’m so glad I found FDM’s website! The downspout clean outs I purchased are working flawlessly — far superior in quality to what you get from the big box stores, and proudly made in the USA. Their YouTube channel has been a fantastic resource too, with clear and helpful how-to videos that made installation a breeze. Highly recommend!
As a homeowner in FL it’s difficult to find a good contractor little alone one that will share their expertise without gain. French Drain Man was responsive and detailed replying to my questions via email. The parts they manufacture are well designed with longevity and ease of maintenance in mind. So much so that I had already bought downspout leaf filter clean outs on Amazon but opted to purchase FDR to replace the Amazon ones. Everything installed as planned and was easy (wish I could say the same for hand digging the trench for the pipe). I am placing another order with them to do the downspout drain piping for the other side of my house soon.
The drain pipe connectors and leaf clean out filters worked great. Already back to buy more!
Update 08/2025: Just got my roof shingles replaced and I am glad I have these French Drain Downsprout cleanout installed. After a rain pour, I decided to go clean up and I found over 30 roof nails all caught in the plastic line guard/filter. Glad they are there as these nails would have just sat in my drain pipes or worse yet, drain out on the small creek where some of kids play. Super thankful for these.
I am a Youtube follower of the French Drain Man channel and ordered 5 x Downsprout cleanout leaf filters. The quality of the product (Made in USA) is top notch, I know they will last years to come.
I am a Youtube follower of the French Drain Man channel and ordered 5 x Downsprout cleanout leaf filters. The quality of the product (Made in USA) is top notch, I know they will last years to come.
I finally got the chance to install a couple of the French Drain Man's Downspout Clean-outs with Leaf Filters that I bought from them last year. They are very functional and look great IMO, so I'm buying more along with several more of their drainage products. Very happy that these products have been conceived, designed and made in USA. Thanks FDM!
We recently have had The French Drain man complete 3 underground gutter drains, with downspout cleanout, catch basin, and pop up drain. They were installed under cement walkways already in place. From the moment they arrived you could see they were very organized and meticulous about their business. They have what they do down to a science. There was no guessing as they had a plan in place for our yard before they arrived. They used top notch products, and completely put everything back and cleaned up as if they were never there. Thank you French Drain Man.
They are working so well we decided to buy 4 more. We purchased downspouts with filter and they were easy to work with. Decided to have them shipped and the cost were reasonable. Employees were great too. T from Fenton area
Love my new downspout filters!!! Excellent combination of design and function! This should become an industry standard in the US!
Love the Downspout Cleanout with Leaf filters. Easy to install and keeps drain lines clean.
We do not ship outside the 48 contiguous states.
Note: All orders ship within 7 days.
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