21" wide slotted drain

21" wide slotted drain

21" diameter slot drain.  Can be sloped from 25" to 35" deep typical (contact us for pricing and availability on deeper depths).  Typically used for flows up to 23 cfs (10,300 gpm).  Frame options are heavy duty and extreme duty in black powder painted steel, galvanized steel, and stainless steel.  Comes complete with installation brackets, end plates and outlets.


    Pipe diameter: 21" I.D.

    Slot width: select 1/4" wide or 1.75" wide

    Section length: 10' long

    Depth: varies from 25" to 35"

    Slope: 0.5% typical (any other slope as required)

    Trench Material:  Polyester glass fiber reinforced polymer concrete

    Frame Material:  Various loadings, materials, and finishes offered.


    Note:  after placing order a customer service representative will call you to confirm the details of your order and that it is configured in the manner that you choose.




    This product is assembled to order and will be custom built to your specifications. As a result the trench is non-returnable. Grates and locking hardware are returnable. If they are in re-saleable condition they will be accepted and will be assessed a 25% restocking fee.


    Shipping of the DuraTrench product is by truck freight only due to the long section lengths. A forklift is recommended to unload the materials, however, lift gate service is available for an additional charge.