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Collection: Pre-Sloped Drainage Kits

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262 products

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Iron Age Designs (52 products)
NDS (23 products)
Hubbell - POLYCAST (66 products)
ULMA (111 products)
TDS (Trench Drain Systems) (66 products)
Zurn (37 products)

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Residential (218 products)
Decorative (129 products)
Sports Complex - Recreational (69 products)
Chemical Processing (27 products)
Food Processing (19 products)
General Purpose Drainage - Interior (233 products)
General Purpose Drainage - External (244 products)
Transportation (43 products)

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D100 (15 products)
Dura Slope (23 products)
FP1200 (Replacement Part Only) (8 products)
M100K (1 products)
M100KX (2 products)
MultiV+200D (4 products)
MV+200K (4 products)
MV+200KX (4 products)
POLYCAST 500 (5 products)
POLYCAST 600 (48 products)
POLYCAST 700 (13 products)
POLYCAST 900 (2 products)
SS0600 (18 products)
U100K (38 products)
U100KX (43 products)
Z882 (1 products)
Z884 (26 products)
Z886 (10 products)

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Load Class

Class A (66 products)
Class B (88 products)
Class C (53 products)
Class D (34 products)
Class E (16 products)

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Channel Material

Fiberglass - Polyester (8 products)
Plastic - (PP, HDPE, PE) (60 products)
Polymer Concrete - Polyester (173 products)
Polymer Concrete - Vinyl Ester (3 products)
Stainless 304 (18 products)

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Part (3 products)
Channel Part (3 products)
Kit (259 products)
Channel Kit (259 products)

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Ductile/Cast Iron - Baked on Oil Finish (31 products)
Ductile/Cast Iron - Raw (95 products)
Fiberglass (15 products)
Galvanized Steel (35 products)
Plastic/HDPE - Black (14 products)
Plastic/HDPE - Gray (8 products)
Plastic/HDPE - Green (2 products)
Plastic/HDPE - Red (1 products)
Plastic/HDPE - Brown (2 products)
Plastic/HDPE - Sand (3 products)
Plastic/HDPE - White (3 products)
Stainless Steel 304 (41 products)
Stainless Steel 316L (14 products)

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Grate Width

4.13" for Zurn Z884 (26 products)
4.81" for ULMA (99 products)
5.25" (81 products)
5.25" for Hubbell Polycast (2 products)
5.38" for Zurn Z886 (10 products)
6.00" for NDS DuraSlope (23 products)
9.00" (12 products)
14.66" for TDS FP/FF/FE 1200 (8 products)

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0.75" (253 products)
1.50" (8 products)

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ARGO (5 products)
BAR (19 products)
BRICK (2 products)
CARBOCHON (4 products)
CATHEDRAL (5 products)
DECO (3 products)
DIAMOND (3 products)
FERN (1 products)
FOAM (3 products)
GREEK KEY (4 products)
INTERLAKEN (6 products)
JANIS (2 products)
LOCUST (6 products)
LUNARIA (1 products)
MESH (10 products)
MINNIONE (4 products)
MISSION BAY (4 products)
OBLIO (4 products)
PATRIOT (3 products)
PERFORATED (21 products)
QUE (2 products)
RAIN (2 products)
REGULAR JOE (6 products)
RIVER ROCK (4 products)
SLOTTED (101 products)
SQ DECO (2 products)
TILE (2 products)
TRANSVERSE SLOTTED (12 products)
WEAVE (2 products)
WEDGE WIRE (14 products)

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ABSTRACT (17 products)
DECO (4 products)
GEOMETRIC (24 products)
INDUSTRIAL (24 products)
NATURE (11 products)
PATRIOTIC (3 products)
PERFORATED (34 products)
SLOTTED (140 products)
TRADITIONAL (5 products)

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Edging - None (117 products)
Edging - Galvanized (65 products)
Edging - Stainless (50 products)
Edging - Ductile Iron (4 products)
Frame - None (118 products)
Frame - Stainless (11 products)
Frame - HDPE (9 products)
Frame - Ductile Iron (7 products)

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262 products

POLYCAST 600 Series Kit with DG0641D Slotted Ductile Iron Grate

POLYCAST 600 Series Kit with DG0641D Slotted Ductile Iron Grate

Regular price From $212.20 USD

Regular price Sale price From $212.20 USD
Unit price per
POLYCAST 700 Series Kit w/ DG0641D Slotted Ductile Iron Grate & Frame

POLYCAST 700 Series Kit w/ DG0641D Slotted Ductile Iron Grate & Frame

Regular price From $286.76 USD

Regular price Sale price From $286.76 USD
Unit price per
POLYCAST 600 Series Channels

POLYCAST 600 Series Channels

Regular price From $136.16 USD

Regular price Sale price From $136.16 USD
Unit price per
POLYCAST 600 Series Kit with DG0675HD ADA Transverse Slotted Ductile Iron Grate

POLYCAST 600 Series Kit with DG0675HD ADA Transverse Slotted Ductile Iron Grate

Regular price From $223.24 USD

Regular price Sale price From $223.24 USD
Unit price per
POLYCAST 600 Sloped Channel Kit - w/o Grates

POLYCAST 600 Sloped Channel Kit - w/o Grates

Regular price From $192.44 USD

Regular price Sale price From $192.44 USD
Unit price per
POLYCAST 700 Series Kit w/ DG0675HD ADA Transverse Slotted Ductile Iron Grate & Frame

POLYCAST 700 Series Kit w/ DG0675HD ADA Transverse Slotted Ductile Iron Grate & Frame

Regular price From $297.79 USD

Regular price Sale price From $297.79 USD
Unit price per
Zurn Z886 Drainage Kit w/ DGC Ductile Iron Slotted Grate - Class C

Zurn Z886 Drainage Kit w/ DGC Ductile Iron Slotted Grate - Class C

Regular price From $1,080.28 USD

Regular price Sale price From $1,080.28 USD
Unit price per
POLYCAST® 600 Vinyl Ester Series Kit with DG0641D Slotted Ductile Iron Grate

POLYCAST® 600 Vinyl Ester Series Kit with DG0641D Slotted Ductile Iron Grate

Regular price From $314.10 USD

Regular price Sale price From $314.10 USD
Unit price per
ZURN Z884 Drainage Kit w/ P4-PG Galvanized Perforated Class A Grates

ZURN Z884 Drainage Kit w/ P4-PG Galvanized Perforated Class A Grates

Regular price From $364.34 USD

Regular price Sale price From $364.34 USD
Unit price per
NDS Dura Slope Kit with DS-232 Ductile Iron Grate - 6"

NDS Dura Slope Kit with DS-232 Ductile Iron Grate - 6"

Regular price From $475.22 USD

Regular price Sale price From $475.22 USD
Unit price per
ULMA U100KX w/ Iron Age Rain Grate-BoOF

Sale

ULMA U100KX w/ Iron Age Rain Grate-BoOF

Regular price From $351.82 USD

Regular price ~~$385.74 USD~~ Sale price From $351.82 USD
Unit price per

Sale
ZURN Z884 Drainage Kit w/ P4-PS Stainless Steel Perforated Grate - Vandal Proof Locks & Bottom Outlet

ZURN Z884 Drainage Kit w/ P4-PS Stainless Steel Perforated Grate - Vandal Proof Locks & Bottom Outlet

Regular price From $642.22 USD

Regular price Sale price From $642.22 USD
Unit price per
POLYCAST 700 Series Kit w/ DG0675HD ADA Transverse Slot Ductile Iron Grate & HDPE Frame

POLYCAST 700 Series Kit w/ DG0675HD ADA Transverse Slot Ductile Iron Grate & HDPE Frame

Regular price From $285.90 USD

Regular price Sale price From $285.90 USD
Unit price per
POLYCAST 600 Series Kit with DG0647R Reinforced Slotted Stainless Grate and Edging

POLYCAST 600 Series Kit with DG0647R Reinforced Slotted Stainless Grate and Edging

Regular price From $567.82 USD

Regular price Sale price From $567.82 USD
Unit price per
ULMA MV+200KX w/ 660 Ductile Iron 9X20 Slotted Grate Class D

Sale

ULMA MV+200KX w/ 660 Ductile Iron 9X20 Slotted Grate Class D

Regular price From $256.67 USD

Regular price ~~$330.00 USD~~ Sale price From $256.67 USD
Unit price per

Sale
ULMA M100K Neutral Shallow Channel - Galvanized Edge

Sale

ULMA M100K Neutral Shallow Channel - Galvanized Edge

Regular price $82.22 USD

Regular price ~~$105.71 USD~~ Sale price $82.22 USD
Unit price per

Sale
ZURN Z884 Drainage Kit w/ P4-CG Cast Iron Slotted Grate - Bottom Outlet

ZURN Z884 Drainage Kit w/ P4-CG Cast Iron Slotted Grate - Bottom Outlet

Regular price From $413.12 USD

Regular price Sale price From $413.12 USD
Unit price per
POLYCAST®500 Series Kit w/ DG0655 Stainless Wedge Wire Grate | Load Class B

POLYCAST®500 Series Kit w/ DG0655 Stainless Wedge Wire Grate | Load Class B

Regular price From $866.66 USD

Regular price Sale price From $866.66 USD
Unit price per
Zurn Z882 Linear Drain Kit w/P12-DGE Ductile Iron Grate & Bottom Outlet

Zurn Z882 Linear Drain Kit w/P12-DGE Ductile Iron Grate & Bottom Outlet

Regular price From $2,979.80 USD

Regular price Sale price From $2,979.80 USD
Unit price per
ULMA U100K Drainage Kit w/ TDS Bronze Age Fern Ductile Iron Grate-RAW

Sale

ULMA U100K Drainage Kit w/ TDS Bronze Age Fern Ductile Iron Grate-RAW

Regular price From $155.28 USD

Regular price ~~$174.64 USD~~ Sale price From $155.28 USD
Unit price per

Sale

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Resources

Shipping / Returns

Determining Your Grate Size

Load Class Chart

Drainage News

How Do You Clean Out a Trench Drain Without Damaging It?
May 27, 2026
What is Load Class and Why Is It Important?
Feb 23, 2024
Keeping Livestock Safe – Grate Ideas
Feb 02, 2024
TDS Bronze Age™ Collection
Oct 31, 2023

On Sale

ULMA 420 / GN100KCA, Class A, Slotted Galvanized Steel 122mm x 1M Grate
~~$37.45~~ $26.22
ULMA 424 / GN100KCC, Class C, Slotted Reinforced Galvanized Steel 124mm x 1M Grate
~~$80.36~~ $62.50
LD100X-2 Locking Device for ULMA Grates
~~$12.96~~ $10.08

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