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Fittings, Couplers and RisersFrench Drain Man2025-08-26T13:15:48-04:00

Basin Fittings, Couplers & Risers

Catch Basin Risers

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TORRENTIAL RAIN™ 4 in. Catch Basin Riser
adds 2 in. of lift

Starting From: $6.50
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TORRENTIAL RAIN™ 6 in. Catch Basin Riser
adds 5 in. of lift

Original price was: $16.25.Current price is: $14.40.
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TORRENTIAL RAIN™ 6 in. Catch Basin Riser
adds 1.5 in. of lift

Starting From: $7.35
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FDM 24 in. x 12 in. Riser

$97.50
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FDM 20 in. x 12 in. Riser

$78.00
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FDM 24 in. x 6 in. Riser

$71.50
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FDM 20 in. x 6 in. Riser

$61.00
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FDM 24 in. x 2 in. Riser Round Wall

$59.00
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FDM 12 in. x 6 in. Riser

$45.50
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FDM 12 in. x 12 in. Square Riser

$32.50
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20 in. x 2 in. Riser

$49.75
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FDM 12 in. x 3 in. Riser

$25.00

Solid Drain Covers

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TORRENTIAL RAIN™ 4 in. Solid Drain Cover

Original price was: $9.50.Current price is: $7.50.
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TORRENTIAL RAIN™ 4 in. Solid Drain Cover

Original price was: $9.50.Current price is: $7.50.
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TORRENTIAL RAIN™ 4 in. Solid Drain Cover

Original price was: $9.50.Current price is: $7.50.
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TORRENTIAL RAIN™ 6 in. Solid Drain Cover

Original price was: $13.95.Current price is: $11.95.
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TORRENTIAL RAIN™ 6 in. Solid Drain Cover

Original price was: $13.95.Current price is: $11.95.

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24 in. Heavy Duty Solid Cover for Risers and Corrugated Pipe

Original price was: $89.97.Current price is: $70.00.
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18 in. Heavy Duty Solid Cover for Risers and Corrugated Pipe

Original price was: $79.97.Current price is: $60.00.

Drain Grates

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TORRENTIAL RAIN™ 4 in. Full Throttle Drain Grate

Original price was: $8.50.Current price is: $5.50.
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TORRENTIAL RAIN™ 4 in. Full Throttle Drain Grate

Original price was: $8.50.Current price is: $5.50.
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TORRENTIAL RAIN™ 4 in. Full Throttle Drain Grate

Original price was: $8.50.Current price is: $5.50.
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TORRENTIAL RAIN™ 6 in. Full Throttle Drain Grate

Original price was: $12.95.Current price is: $10.95.
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TORRENTIAL RAIN™ 6 in. Full Throttle Drain Grate

Original price was: $12.95.Current price is: $10.95.

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24 in. Heavy Duty Grate Cover for Risers and Corrugated Pipe

Original price was: $89.97.Current price is: $70.00.
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18 in. Heavy Duty Grate for Risers and Corrugated Pipe

Original price was: $79.97.Current price is: $60.00.
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12 in. Heavy Duty Grate for Corrugated Pipe

Original price was: $60.00.Current price is: $40.00.

FDM’s TORRENTIAL RAIN™ Couplers for Basins

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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™ 4 in. Corrugated End Cap

Price range: $3.65 through $3.95
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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. 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. Corrugated to 4 in. PVC HDPE Coupler
male and female adapters
40% off

Price range: $11.95 through $13.95

More Basin Fittings and Supplies

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Decorative Pea Stone

In Store Pick Up Only

Original price was: $6.99.Current price is: $4.25.
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Drainage Sand

In Store Pick Up Only

Original price was: $6.99.Current price is: $4.25.
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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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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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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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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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4 in. x 6 in. PVC Hub x Hub Reducer Coupling

Up to 20% off

Starting From: $12.00
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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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4 in. D-box Seal and Nuts

$13.50
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6 in. D-Box Seal and Nuts

$15.50

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