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Fittings and CouplersFrench Drain Man2025-08-26T07:36:00-04:00

Fittings and Couplers

3½ in. Fittings and Couplers

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TORRENTIAL RAIN™ 3½ in External Snap Coupler HDPE
Connects to 3½ in Corrugated

Original price was: $9.50.Current price is: $6.49.
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TORRENTIAL RAIN™ 3½ in. Corrugated to 4 in. PVC Female Coupler
Connects 4 in. PVC to 3½ in. Corrugated

Original price was: $25.00.Current price is: $14.95.
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TORRENTIAL RAIN™ 3½ in End Cap HDPE
Connects to 3½ in Corrugated

Original price was: $5.95.Current price is: $3.25.
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TORRENTIAL RAIN™ 3½ in. to 4 in. Reducer/Increaser
Connects 3½ in. to 4 in. Corrugated

$5.49
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FDM’s New Fasteners
pack of 2

$0.30
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TORRENTIAL RAIN™ Flow Gate for 3½ in. Corrugated Pipe
Connects to 3½ in. Corrugated

Original price was: $31.51.Current price is: $23.00.
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TORRENTIAL RAIN™ 3½ in. Not Quite a 90 Degree Fitting
Connects to 3½ in. Corrugated
30% off

Original price was: $24.75.Current price is: $17.95.
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TORRENTIAL RAIN™ 3½ in. Corrugated Wye Fitting
Connects to 3½ in. Corrugated

Original price was: $25.00.Current price is: $12.40.
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TORRENTIAL RAIN™ 1½ in. Sump Pump Discharge Line to 3½ in. Corrugated Fitting

$65.00

3 in. Couplers

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TORRENTIAL RAIN™ 3 in. Corrugated to 4 in. PVC Coupler HDPE
male on center adapter, connects to 4 in. smooth wall
38% off

Starting From: $11.96
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TORRENTIAL RAIN™ 3 in. Corrugated to 4 in. PVC Coupler HDPE
female adapter, connects to 4 in. SCH 40
34% off

Starting From: $7.96
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TORRENTIAL RAIN™ 3 in. Corrugated to 4 in. PVC Offset HDPE Coupler
connects to select brands of 3 in. corrugated
38% off

Original price was: $25.00.Current price is: $14.95.
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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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FDM’s New Fasteners
pack of 2

$0.30

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3 in. Single-Wall Corrugated Drain Tile External Snap Coupler
Up to 20% off

Starting From: $3.38
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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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3 in. Corrugated Drain Tile External End Cap
Up to 20% off

Starting From: $2.38
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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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2 in. x 3 in. x 3 in. Downspout Adapter
Up to 20% off

Starting From: $6.37

3 in. Fittings

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TORRENTIAL RAIN™ 3 in. Not Quite a 90 Degree Fitting
Connects to 3 in Corrugated

$17.95
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3 in. Single Wall Corrugated Drain Tile 90-Degree Elbow
Up to 20% off

Starting From: $7.20
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Corrugated Wye Fittings
Choose from 3 in. OR 3½ in. Corrugated
Up to 20% off

Price range: $12.00 through $12.40
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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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3 in. Single Wall Tee
Connects to 3 in. Corrugated
39% off

Original price was: $13.00.Current price is: $7.95.

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.
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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 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.
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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

FDM’s 4 in. PVC Fittings and Couplers

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TORRENTIAL RAIN™ 3½ in. Corrugated to 4 in. PVC Female Coupler
Connects 4 in. PVC to 3½ in. Corrugated

Original price was: $25.00.Current price is: $14.95.
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TORRENTIAL RAIN™ 3 in. Corrugated to 4 in. PVC Coupler HDPE
male on center adapter, connects to 4 in. smooth wall
38% off

Starting From: $11.96
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TORRENTIAL RAIN™ 3 in. Corrugated to 4 in. PVC Coupler HDPE
female adapter, connects to 4 in. SCH 40
34% off

Starting From: $7.96
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TORRENTIAL RAIN™ 3 in. Corrugated to 4 in. PVC Offset HDPE Coupler
connects to select brands of 3 in. corrugated
38% off

Original price was: $25.00.Current price is: $14.95.
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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. Corrugated to 4 in. PVC HDPE Coupler
male and female adapters
40% off

Price range: $11.95 through $13.95

More 4 in. PVC Fittings and Couplers

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FDM Extend & Lock

Price range: $28.00 through $42.00
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
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Coupler to Connect Any Pop-up Emitter to 4″ PVC Schedule 40
Up to 20% off

Starting From: $9.20
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Coupler to Connect 4″ PVC Thin Wall SDR35 to 4″ PVC Schedule 40
Up to 20% off

Starting From: $6.80
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4 in. x 6 in. PVC Hub x Hub Reducer Coupling

Up to 20% off

Starting From: $12.00
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4 in. x 4 in. x 4 in. Tee Fitting
(PVC SDR 35)
Up to 20% off

Starting From: $6.40
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4 in. Corrugated Pipe Adapter to 4 in. PVC
Up to 20% off

Starting From: $11.20
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4 in. 90 degree SDR PVC
Up to 20% off

Starting From: $4.40
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1.5 in. Schedule 40 Bushing
Up to 20% off

Starting From: $6.40
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1.5 in. PVC Riser and Threaded Male Adapter
Up to 20% off

Starting From: $20.00
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1.5 in. PVC Fitting with Stainless Steel Screw Clamps<
Up to 20% off

Starting From: $9.60
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1.5 in. PVC Fitting – Barbed on One End with Male Threaded Adapter
Up to 20% off

Starting From: $8.00
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1.5 in. PVC 90 Degree Fitting – Barbed on Both Ends with Stainless Steel Screw Clamps
Up to 20% off

Starting From: $9.60

5 in. Corrugated Fittings and Couplers

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5 in. Corrugated Internal Snap Coupler

Original price was: $14.95.Current price is: $8.95.
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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 5 in. x 4 in. Reducing Single Wall Corrugated Wye

$18.95
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5 in. Single Wall Corrugated Wye

Original price was: $25.00.Current price is: $17.95.
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5 in. Corrugated Single Wall Tee

Original price was: $20.00.Current price is: $14.95.
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5 in. Corrugated Blind Tee

Original price was: $20.00.Current price is: $14.95.
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5 in. x 4 in. x 5 in. Corrugated Single Wall Tee

Original price was: $20.00.Current price is: $14.95.

6 in. Corrugated Couplers

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6 in. End Plug Extra Heavy Duty
40% off

Original price was: $14.95.Current price is: $8.95.
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6 in. Corrugated Drain Tile External End Cap
20% OFF

Original price was: $13.00.Current price is: $10.40.
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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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6 in. x 4 in. Polyethylene Slip Snap Reducing Coupler
Up to 20% off

Starting From: $8.00
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FDM 6 in. Corrugated Pipe Adapter to 6 in. PVC

20% off

Original price was: $30.00.Current price is: $25.00.
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6″ Single-Wall / Dual-Wall Corrugated Drain Tile External Snap Coupler
20% OFF

Original price was: $6.50.Current price is: $5.20.
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6 in. Corrugated Drain Tile Internal Coupler
20% OFF

Original price was: $8.50.Current price is: $6.80.

6 in. Corrugated Fittings

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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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6 in. Corrugated Drain Tile Tee
20% OFF

Original price was: $19.00.Current price is: $15.20.
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6 in. Reducing Tee
20% OFF

Original price was: $30.00.Current price is: $24.00.
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6 in. Single Wall Reducing Cross Tee
20% OFF

Original price was: $30.00.Current price is: $24.00.
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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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6 in. x 5 in. x 4 in. Reducing Single Wall Corrugated Wye

$18.95
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6 in. to 4 in. Corrugated WYE Fitting
20% OFF

$25.00
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6 in. 45 Degree Elbow for Single Wall and Dual Wall Pipe
20% OFF

Original price was: $30.00.Current price is: $24.00.
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6 in. Corrugated Drain Tile 90-Degree Elbow
20% OFF

Original price was: $24.00.Current price is: $19.00.
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6 in. Critter Guard, Stainless Steel
Up to 20% off

Starting From: $15.20

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