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FLo-Thru® Trench Drain Products

Zurn was founded in 1900 in Erie, PA and to this day continues to manufacture drainage products in Erie, PA.

Strong and durable to meet the toughest job applications,

Zurn trench drain and duct/chase systems are specified and installed in:

Transportation: highways, airports, ports and rail terminals

Industrial: water and wastewater plants, power plants, chemical and food processing pharmaceutical applications, parking areas

Sport Facilities: tracks, athletic fields, swimming pools and hardscape areas

Commercial Facilities: fire stations, hospitals, schools, marinas, kennels, gas stations, garages, auto dealerships, vehicle maintenance facilities.

Material types, product ID’s and inside trench dimensions (throat width) for each system:

High Density Polyethylene (HDPE)    
          Channel Options:
(1.75”)       Z882 (9.25”)
(3.25”)       Z886 (4”)
(12”)     Z874-18 (18”)     Z874-21 (21”)

HDPE Perma-Track Systems  4” wide drain channel with grate options or 4”, 6”, 8” Slot Drain
          Channel Optionss:
         Z886-ST (4”)      Z888-4 (4”)         Z888-6 (6”)         Z888-8 (8”)

Fiberglass Flo-Thru®
         Channel Options
(4”)           Z812 (9.25”)

Linear Low Density Polyethylene (LLDPE) - linear modular drain channel for high flow requirements.
         LLDPE High Cap Slot Drain Channel Options:
(12")     Z888-18 (18”)     Z888-36 (36”)

Stainless Steel - Sani-Flo - type 304 stainless steel systems (type 316 is also available)
         Channel Options:
         Z890 (4”)           Z891 (3/4”)         Z895 (9”)

Aluminum - Alumi-Trench 1.625”, 3”
         Channel Options:
         ZA880-156 (1.625”)         ZA880-300 (3”)


All of the Zurn Flo-Thru® Modular Drainage Systems offer an improved method for removing surface liquids for most applications. The Zurn Flo-Thru® Systems offer several advantages over either on-site forming or precast polymer concrete systems.

ZURN SAVINGS — Lightweight modular assemblies reduce labor and installation time, eliminate costly leveling/alignment hardware and reduce costly freight charges.

ZURN FLOW VELOCITY — Built-in molded slope produces superior flow characteristics. Smooth, non-porous internal surface further enhances flow.

ZURN VERSATILITY — accessories and ease of modification offer the most versatile trench drainage systems available to satisfy your project requirements.

ZURN QUALITY — Modular sections are assembled together to produce straight, uniform drainage systems. Options such as Dura-Coated heavy-duty steel frames and grates, mechanical overlaps, rebar clips, and combination anchor tabs/leveling devices reduce labor during installation and allow for durable, flexible systems.


All illustrations, detail drawings and descriptions refer to standard features of each product and do not necessarily describe or show the variations available. All designs are subject to change without notice and unless specifically stated on order, material will be furnished per design in effect at the time order is processed. All weights are approximate.


credit: 2011 Zurn Industries, LLC

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