NDS Square Catch Basin Drain Downspout Grate, 12 in., Black Plastic

Great product that performs much better than the previous gutter drainage design I had. Made it through TS Beta (>12” rain locally in 24 hrs) without issue!! My previous gutter drainage was a 3x4 Fernco fitting straight to 4” SDR pipe. The problems I had with that arrangement were that small amount of leaves would clog the fitting, or a tee downstream, and backup the water which would in turn soak my exterior home wall. I removed the Fernco fitting and cut the piping back to allow installation of a NDS 12” Basin Extension, of which I concreted the bottom. I then had to remove my downspout and modify its projection off the wall about 1.5” in order to fit the slope of the drain grate. I then fit up the downspout to overhang the top of grate by about 1-2” to prevent splash back onto the house during heavy rainfall scenarios. This setup so far has been through Tropical Storm Beta (I’m in Houston), and performed beautifully!

These are sturdy catch boxes designed to filter out leaves and debris from rain gutter flow. That avoids clogging the drains too quickly. They are a bit pricey though.

Built a French drain recently to prevernt the water from going under my deck. Fitted perfectly my 12x12 basin and doesn't splash much. Keeps most of the leaves out but some do make it in. It just drops over the basin, without anything needed for the install

Excellent quality. Sturdy. Well made. Just what I needed in windy rainy Florida. It replaced the lid that came with the 12" drain basin which drains to a buried pipe system. It did need longer stainless screws than what were supplied. The lizards love it. They like to hide inside and peek out the slats.

Works well