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This fitting connects 3½ in. corrugated pipe to 4 in. corrugated pipe. It can be used as a reducer or increaser, making it easy to transition between sizes. Made from durable HDPE, it installs quickly and provides a secure, reliable fit for your drainage system. Installation is easiest when the larger diameter pipe is installed first.
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Sale!Built to last, our coupler is made from the strongest material on the planet, HDPE, which boasts a lifespan of up to 500 years. Not only is HDPE durable, but it’s flexible enough to withstand underground buried downspouts, which is crucial when the ground settles and shifts over time.
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Sale!Introducing the ultimate solution for connecting 4 in.PVC to 3½ in Corrugated – 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. Not only is HDPE durable, but it’s flexible enough to withstand underground buried downspouts, which is crucial when the ground settles and shifts over time.
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Sale!Built to last, our coupler is made from the strongest material on the planet, HDPE, which boasts a lifespan of up to 500 years. Not only is HDPE durable, but it’s flexible enough to withstand underground buried downspouts, which is crucial when the ground settles and shifts over time.
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Sale!Now available in 4 inch or 3½ inch corrugated. Compare 3½ in. corrugated to 4 in. corrugated Includes:
- 1 100' Roll of High Octane® Knife-Cut Pipe
- 1 100' Roll of High Octane® ARMOR Heavy Commercial Solid Pipe
- 1 5′ 100′ Roll of 4oz Non-Woven Geo Textile Filter Fabric
- 1 Pack of Fabric Pins (contains 50 QTY)
- 5 of FDM's 4-Way Connect Catch Basins with Turf Restrictor Plate
This item requires freight charges which will be added at checkout. View list of freight costs based on your location. For larger orders product and shipping discounts apply. -
Sale!Now available in 4 inch or 3½ inch corrugated. Compare 3½ in. corrugated to 4 in. corrugated Includes:
- 2 100' Rolls of High Octane® Knife-Cut Pipe
- 1 100' Roll of High Octane® ARMOR Heavy Commercial Solid Pipe
- 1 5′ 100′ Roll of 4oz Non-Woven Geo Textile Filter Fabric
- 1 Pack of Fabric Pins (contains 50 QTY)
- 5 of FDM's 4-Way Connect Catch Basins with Turf Restrictor Plate
This item requires freight charges which will be added at checkout. View list of freight costs based on your location. For larger orders product and shipping discounts apply. -
Sale!Now available in 4 inch or 3½ inch corrugated. Compare 3½ in. corrugated to 4 in. corrugated Includes:
- (2) 100' Rolls of High Octane® 8-Slot Drainage Pipe
- (2) 100' Rolls of 4" High Octane® ARMOR Heavy Commercial Solid Pipe
- (2) 5′ 100′ Rolls of 4oz Non-Woven Geo Textile Filter Fabric
This item requires freight charges which will be added at checkout. View list of freight costs based on your location. For larger orders product and shipping discounts apply.
