Product Details

The 3½ in. PRO KIT is our top-of-the-line downspout package and features FDM’s Not Quite a 90 for maximum flow rate.

Now available in 1 downspout OR 2 downspout kit configurations.

Kit Contents for 2 Downspouts:

• (2) 19 ft. coils of 3½ in. Extreme Duty Solid Corrugated Pipe
• 3½ in. Corrugated Wye
• 3½ in. External Coupler
• (2) Downspout Leaf Filter Clean Outs with Dual Wall Riser and FDM’s New Not Quite a 90 Fitting for maximum flow rate.
• FDM’s 3½ in. x 4 in. coupler to connect cleanout to 3½ in. corrugated pipe
• Pop Up Emitter with Turf Restrictor Plate and FDM’s New Not Quite a 90 Fitting for maximum flow rate
• 3 ft. x 4 ft. of FDM’s Non Woven Geotextile Fabric
• No PVC of any kind used in this kit: suitable for installations where regulations do not allow PVC.

⭐️ Highly Recommended Add-Ons for Single Kit ⭐️ 

• FDM’s 200 Year Tape – Extra Sticky & Extra Stretchy (4 in. x 108 ft.)
• FDM’s Catch Basin – each catch basin comes with a riser for optional 2 in lift and 3 ft. x 4 ft. of FDM’s Non Woven Geotextile Fabric.

Best Used for:

• Buried Downspouts, Roof Runoff System
• Experienced Contractors or Homeowners who want to step up their DIY game