T/Y Corrugated Coupler, Connects to 3-in. and 4-in. Pipe

Flex-Drain 51110 Flexible/Expandable Landscaping Drain Pipe, Solid, 4-Inch by 25-Feet

Flex-Drain 55020 Drain Pipe Coupler Adapter, Female to Female

Flex-Drain 52011 Flexible/Expandable Landscaping Drain Pipe, Solid, 4-Inch by 50-Feet

Flex-Drain 52003 Flexible/Expandable Landscaping Drain Pipe, Perforated with Filter Sock, 4-Inch by 50-Feet

Flexible Elbow Corrugated Landscaping Pipe Connector, Connects to 3-Inch and 4-Inch Pipe

Flex-Drain ADP53102 Downspout Adaptor, Landscaping Drain Pipe Adapter 3 by 4 by 4-Inch

Flex-Drain 51510 Flexible/Expandable Landscaping Drain Pipe, Perforated with Filter Sock, 4-Inch by 25-Feet

Universal Flexible Corrugated Pipe Connector, 4-Inch