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4″ CorrugatedFrench Drain Man2025-08-27T18:51:35-04:00

4 in. Corrugated Fittings and Couplers

You Asked. We Delivered.

FDM’s 4 in. Corrugated to PVC Coupler now has a female counterpart.

You Asked. We Delivered.

FDM’s 4 in. Corrugated to PVC Coupler now has a female counterpart.

You Asked. We Delivered.

FDM’s 4 in. Corrugated to PVC Coupler now has a female counterpart.

4 in. corrugated to 4 in. PVC coupler

4 in. Corrugated Couplers

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TORRENTIAL RAIN™ Flow Gate for 4 in. Corrugated Pipe
Connects to 4 in Corrugated

Original price was: $31.51.Current price is: $25.99.
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TORRENTIAL RAIN™ 4 in. Corrugated to 4 in. PVC HDPE Coupler
male and female adapters
40% off

Price range: $11.95 through $13.95
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TORRENTIAL RAIN™ 4 in. External Snap Coupler to 3 in. Corrugated Combo
Fits any 3 or 4 in. Corrugated

$8.95
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TORRENTIAL RAIN™ 4 in. External Snap Coupler HDPE

Original price was: $9.50.Current price is: $6.95.
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TORRENTIAL RAIN™ 4 in. Corrugated End Cap

Price range: $3.65 through $3.95

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FDM’s New Fasteners
pack of 2

$0.30
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6 in. x 4 in. Polyethylene Slip Snap Reducing Coupler
Up to 20% off

Starting From: $8.00
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FDM Bushing for Connecting Outdoor Sump Pump Line to 4 in. Corrugated
Up to 20% off

Starting From: $21.60
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3 in. x 4 in. Single Wall Reducing Coupler
Up to 20% off

Starting From: $5.02
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2 in. x 3 in. x 4 in. Corrugated Drain Tile Downspout Adapter with Trim Ring
Up to 20% off

Starting From: $5.56
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3 in. x 4 in. x 4 in. Corrugated Drain Tile Downspout Adapter
Up to 20% off

Starting From: $6.37
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5 in. x 4 in. Corrugated Reducer

Original price was: $17.95.Current price is: $11.95.
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6 in. x 4 in. Corrugated Reducer Extra Heavy Duty
25% off

Original price was: $19.95.Current price is: $14.95.
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4 in. Corrugated Pipe Adapter to 4 in. PVC
Up to 20% off

Starting From: $11.20
Out of stock

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FDM Corrugated Pipe Adapter aka Cone (4 in. corrugated to 4 in. SDR 35)

Starting From: $0.00

4 in. Corrugated Couplers

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TORRENTIAL RAIN™ Flow Gate for 4 in. Corrugated Pipe
Connects to 4 in Corrugated

Original price was: $31.51.Current price is: $25.99.
Sale!

View Cart

Select options This product has multiple variants. The options may be chosen on the product page / Details

TORRENTIAL RAIN™ 4 in. Corrugated to 4 in. PVC HDPE Coupler
male and female adapters
40% off

Price range: $11.95 through $13.95
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Add to cart / Details

TORRENTIAL RAIN™ 4 in. External Snap Coupler to 3 in. Corrugated Combo
Fits any 3 or 4 in. Corrugated

$8.95
Sale!

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TORRENTIAL RAIN™ 4 in. External Snap Coupler HDPE

Original price was: $9.50.Current price is: $6.95.
Sale!

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Select options This product has multiple variants. The options may be chosen on the product page / Details

TORRENTIAL RAIN™ 4 in. Corrugated End Cap

Price range: $3.65 through $3.95
View Cart

Select options This product has multiple variants. The options may be chosen on the product page / Details

FDM’s New Fasteners
pack of 2

$0.30

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Add to cart / Details

6 in. x 4 in. Polyethylene Slip Snap Reducing Coupler
Up to 20% off

Starting From: $8.00
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Add to cart / Details

FDM Bushing for Connecting Outdoor Sump Pump Line to 4 in. Corrugated
Up to 20% off

Starting From: $21.60
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Add to cart / Details

3 in. x 4 in. Single Wall Reducing Coupler
Up to 20% off

Starting From: $5.02
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2 in. x 3 in. x 4 in. Corrugated Drain Tile Downspout Adapter with Trim Ring
Up to 20% off

Starting From: $5.56
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3 in. x 4 in. x 4 in. Corrugated Drain Tile Downspout Adapter
Up to 20% off

Starting From: $6.37
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5 in. x 4 in. Corrugated Reducer

Original price was: $17.95.Current price is: $11.95.
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6 in. x 4 in. Corrugated Reducer Extra Heavy Duty
25% off

Original price was: $19.95.Current price is: $14.95.
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4 in. Corrugated Pipe Adapter to 4 in. PVC
Up to 20% off

Starting From: $11.20
Out of stock

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FDM Corrugated Pipe Adapter aka Cone (4 in. corrugated to 4 in. SDR 35)

Starting From: $0.00

4 in. Corrugated Fittings

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TORRENTIAL RAIN™ 4 in. Not Quite a 90 Degree Fitting
Connects to 4 in. Corrugated and 4 in. PVC
30% off

Original price was: $19.95.Current price is: $13.95.
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TORRENTIAL RAIN™ 4 in. Not Quite a 90 Degree Fitting
Connects to 4 in Corrugated
27% off

Original price was: $24.75.Current price is: $18.00.
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4 in. Corrugated Dual-Wall 90-Degree Elbow
Up to 20% off

Starting From: $3.60
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4 in. Single Wall Corrugated Drain Tile 45-Degree Elbow
Up to 20% off

Starting From: $10.40
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4 in. Single Wall Corrugated Drain Tile 90-Degree Elbow
Up to 20% off

Starting From: $7.20
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EXTRA Heavy-Duty 4 in. Wye Fitting
44% off

Original price was: $25.00.Current price is: $14.00.
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4 in. Corrugated Drain Tile Wye
12% Off

Original price was: $10.00.Current price is: $8.75.
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4 in. Single Wall Wye and 45° Fitting Combination
Up to 20% off

Starting From: $20.80
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4″ Wye with 3×4 Reducer
Up to 20% off

Starting From: $18.84
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6 in. to 4 in. Corrugated WYE Fitting
20% OFF

$25.00
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6 in. x 5 in. x 4 in. Reducing Single Wall Corrugated Wye

$18.95
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6 in. to 4 in. WYE Dual Wall Connector
20% OFF

Original price was: $48.00.Current price is: $38.40.
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4 in. x 3 in. Single Wall Tee Extra Heavy Duty
Connects to 3 in. and 4 in. Corrugated
29% off

Original price was: $18.00.Current price is: $10.10.
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4 in. Corrugated Tee Extra Heavy Duty

$10.10
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4 in. Corrugated Single Wall Cross Tee
Up to 20% off

Starting From: $19.20
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6 in. x 4 in. Single Wall Corrugated Tee Extra Heavy Duty
25% off

Original price was: $25.00.Current price is: $21.95.
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4 in. Corrugated Internal Drain Tile Tee
34% OFF

Original price was: $7.48.Current price is: $4.95.
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4 in. Corrugated External Drain Tile Tee
20% off

Original price was: $9.00.Current price is: $7.10.
Out of stock

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4 in. Critter Guard, Stainless Steel
Up to 20% off

Starting From: $13.60
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1-1/2 in. Flex Sump Pump Line to 4 in. Corrugated Fitting
Up to 20% off

Starting From: $48.00

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