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Easiest connection from 1½ in. sump pump line to 3½ in. corrugated. Just need a 5/16 in. nut driver or screwdriver for the stainless steel clamp which secures the connection.
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Sale!
- Joins 3 pieces of 3½ in. corrugated pipe at a 45° Y angle
- Easy snap connection to corrugated pipe
- Provides directional flow
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Sale!Ideal for the daylighted end of a 4" corrugated drain line, this flow gate blocks unwanted pests like chipmunks, snakes, birds, and rodents from entering your system. The solid cover also prevents mosquitoes from getting in and breeding inside the pipe.
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Sale!Introducing French Drain Man's innovative "Not Quite a 90" – the ultimate solution for efficient water drainage around your property. This unique fitting is designed with a built-in slope, ensuring the perfect angle for redirecting water away from your house or achieving the ideal pitch for your pop-up emitter.
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Sale!Includes:
- FDM's Turf Restrictor Plate with solid drain cover available in Black, Green or Tan
- FDM’s 3½ in. Not Quite a 90 fitting for maximum flow rate.
- FDM’s 3½ in. to 4 in. HDPE Reducing Coupler
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Sale!Ideal for the daylighted end of a 3½ in. corrugated drain line, this flow gate blocks unwanted pests like chipmunks, snakes, birds, and rodents from entering your system. The solid cover also prevents mosquitoes from getting in and breeding inside the pipe. Includes (2) Fasteners
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Sale!New! 5 in. x 4 in. x 5 in. Corrugated Single Wall Tee. This is a DIY friendly product endorsed by the FDM Team — it’s all we use!
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Sale!New! 5 in. Corrugated Blind Tee can be used as 90 degree elbow or to use as a straight tee, cut the blind end.
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Sale!New! 5 in. Corrugated Single Wall Tee, This is a DIY friendly product endorsed by the FDM Team — it’s all we use!
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Out of stockFDM replaced this coupler with our New and Improved, Dry Fit, NO GLUE Coupler The new coupler is STRONGER than ever and made out of HDPE, making it indestructible! Go to FDM's New Coupler 👇
4 in. PVC to Corrugated Coupler
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FDM replaced this coupler with a New and Improved FDM’s Dry Fit NO GLUE Coupler The new coupler is STRONGER than ever and made out of HDPE, making it indestructible! Go to FDM's New Coupler 👇
4 in. PVC to Corrugated Coupler
Watch Video 👇 -
Sale!New! EXTRA Heavy-Duty 6 in. End Cap is the preferred choice of the French Drain Man Team.
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Sale!New! EXTRA Heavy-Duty 6 in. x 4 in. Corrugated Reducer is used to join 6 in Corrugated HDPE Pipe to 4 in. with a secure connection.
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Easiest connection from sump pump line to 4 in. Corrugated. Just need a 5/16 in. nut driver or screw driver for the stainless steel clamp which secures the connection.
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Out of stockThe 4 in. Critter Guard has been replaced with: FDM's New and Improved Flow Gate for 4 in. Corrugated Pipe Our new Flow Gate not only keeps small rodents from entering your drainage system, but its solid cover prevents mosquitoes from getting in and breeding inside the pipe.
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Sale!New! EXTRA Heavy-Duty 6 in. x 4 in. Single Wall Corrugated Tee is the preferred choice of the French Drain Man Team.
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New! EXTRA Heavy-Duty 4 in. Corrugated Tee - the preferred choice of the French Drain Man Team.
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Sale!New! EXTRA Heavy-Duty 4 in. x 3 in. Single Wall Corrugated Tee is for a 4 in. main trunk line and a 3 in. intersecting branch line - the preferred choice of the French Drain Man Team.
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Sale!New! 5 in. Single Wall Corrugated Wye. This is a DIY friendly product endorsed by the FDM Team — it’s all we use!
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New! 6 in. x 5 in. x 4 in. Reducing Single Wall Corrugated Wye
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- Used to connect 4 in.corrugated pipe to 3 in. corrugated pipe
- Easy snap connection
- Provides directional flow
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This 4 in single wall wye allows for easy connection when tying 2 lines into one discharge line.
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Sale!This single-wall wye allows a 45-degree connection to the mainline pipe. This wye is barbed.
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Sale!New! EXTRA Heavy-Duty 4 in. Wye Fitting. Built for durability and reliability, this fitting is the preferred choice of the French Drain Man Team. The 4 in. Wye fitting seamlessly connects multiple drainage lines, ensuring a smooth transition between pipes and effectively directing water flow while minimizing turbulence. Trust the choice of professionals — choose our EXTRA Heavy-Duty 4 in. Wye Fitting for your next drainage project.
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Sale!New! 5 in. x 4 in. Single Wall Corrugated Reducer used to connect 4 in corrugated pipe to 5 in corrugated pipe.
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Sale!New! 5 in. Corrugated Internal Snap Coupler, This is a DIY friendly product endorsed by the FDM Team — it’s all we use!
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2 in. x 3 in. x 3 in. Downspout Adapter
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Sale!Riser adds 2 inches of height to FDM's Pop Up Emitter, Basin and Drain Line Cleanout. If you need more than 2 inches of lift, simply stack the risers on top of each other and build to your desired height.
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Sale!If your catch basin is at an odd height, there’s an easy way to fix that. Just dig out a little deeper and add a riser. FDM's Catch Basin riser adds 2 inches of height. If you need more than 2 inches of lift, simply stack the risers on top of each other and build to your desired height. Fits any of FDM's 4" Pop-Ups and FDM's 4" Catch Basin.
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Sale!Dry Fit, NO GLUE! Introducing the ultimate solution for connecting 4" corrugated pipe to any 4" smooth wall PVC pipe - our HDPE coupler. Built to last, our coupler is made from the strongest material on the planet, HDPE, which boasts a lifespan of up to 500 years. It has a lifetime guarantee not to crack. Not only is HDPE durable, but it's also flexible enough to withstand underground buried downspouts, which is crucial when the ground settles and shifts over time. Includes (2) of FDM's Fasteners
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This single-wall elbow is used to change direction 90 degrees.
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This single-wall elbow is corrugated on the inside and outside and used to change direction 45 degrees.
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Dual-wall elbow is used to change the direction 90 degrees.
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Sale!Introducing French Drain Man's innovative "Not Quite a 90" – the ultimate solution for efficient water drainage around your property. This unique fitting is designed with a built-in slope, ensuring the perfect angle for redirecting water away from your house or achieving the ideal pitch for your pop-up emitter.
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Sale!Introducing French Drain Man's innovative "Not Quite a 90" – the ultimate solution for efficient water drainage around your property. This unique fitting is designed with a built-in slope, ensuring the perfect angle for redirecting water away from your house or achieving the ideal pitch for your pop-up emitter.
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- Universal Compatibility: Fits any 3" or 4" corrugated pipe
- Superior Hold: Engineered for the best hold, this coupler is guaranteed not to come apart, providing reliability and peace of mind.
- Tape-Free Installation: No tape is required when using corrugated pipe, simplifying the installation process.
- Durable and Resilient: Constructed from high-quality materials, this coupler is built to withstand harsh weather conditions and heavy use.
- Easy Snap-On Design: Quick, easy, and tool-free installation, making your job faster and more efficient.
- Made in the 🇺🇸 USA.
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Sale!FDM's New single-wall/dual-wall external snap coupler connects 4" corrugated pipe.
- Pure Virgin 100% HDPE with no recycled materials
- FDM Lifetime Guarantee that it will not break
- 8 barbed connection points
- No Tile Tape or Glue Needed!
- Mold Injected NOT blow molded
- Extra Heavy Duty
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Sale!Connects 4 in. PVC to:
- FDM's 3 in. Plus 3 in. Corrugated Pipe
- Advanced Drainage Systems 3 in. Corrugated Pipe
- FDM's Blacked Out 3 in. Corrugated
- FDM's High Octane® 3 in. Corrugated
- Baughman Tile 3 in. Corrugated
