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    4" PolyMax trench drain accessories

    Our 4 inch accessories can be used with all our 4 inch PolyMax plastic channels. We offer a variety of end caps, outlets and adapters. If you have any questions, please contact us for via chat support, email or phone.

    2 end caps come included for free with your entire order. If additional end caps are needed, they must be purchased separately and can be found in this section.

    Each trench drain bundle comes with 2 fasteners and screws included. We offer replacement or additional fasteners here as well.

    All connections of our trench drains require our silicone sealant. We recommend 1 tube for every 10 trench drains.

    Sand traps are sold without grates. You can purchase a grate for our sand trap to match with your system, but be aware that the length of a sand trap is 0.5m and thus some grates may be too long. In this case, they can be cut to size.

    Cascade adapters are for connecting different depths of channels together. Cascade systems can be complicated, and we’d recommend confirming with a Standartpark employee that you have purchased the correct adapter.

    We offer an adapter for connecting our outlets to schedule 40 4” PVC piping. For other size or type of piping, a rubber coupling will be needed instead.

    We recommend for all trench drain projects that you consider purchasing mounting brackets with your channels. The brackets cut the installation time in half by allowing both the base layer and encasing layer of concrete to be poured at the same time. The mounting brackets do not come with rebar supports and those must be purchased separately. We recommend 10M or #3 rebar to be used with our brackets.

    4" Mounting bracket

    Regular price
    $10.00
    Sale price
    From $10.00
    Unit price
    per 

    $10.00

    Polymer sealant - professional silicone

    Regular price
    $20.00
    Sale price
    From $20.00
    Unit price
    per 

    $20.00

    4" PVC pipe adapter

    Regular price
    $5.00
    Sale price
    From $5.00
    Unit price
    per 

    $5.00

    4" Basic PolyMax closed end cap

    Regular price
    from $5.00
    Sale price
    from $5.00
    Unit price
    per 

    From $5.00

    4" Basic PolyMax end cap (8" depth)

    Regular price
    $15.00
    Sale price
    From $15.00
    Unit price
    per 

    $15.00

    4" Basic PolyMax end cap (4"-6" depth)

    Regular price
    $7.00
    Sale price
    From $7.00
    Unit price
    per 

    $7.00

    4" Basic PolyMax end cap w/ outlet (6" depth)

    Regular price
    $8.00
    Sale price
    From $8.00
    Unit price
    per 

    $8.00

    4" Basic PolyMax inline sand trap (16" depth)

    Regular price
    $142.00
    Sale price
    From $142.00
    Unit price
    per 

    $142.00

    4" Drive PolyMax® inline sand trap, E Class

    Regular price
    $219.00
    Sale price
    From $219.00
    Unit price
    per 

    $219.00

    4" Zinc grate fastener

    Regular price
    $5.00
    Sale price
    From $5.00
    Unit price
    per 

    $5.00

    4" Plastic grate fastener

    Regular price
    $3.00
    Sale price
    From $3.00
    Unit price
    per 

    $3.00

    SALE

    3" PVC pipe adapter

    Regular price
    $5.00
    Sale price
    From $5.00
    Unit price
    per 

    $5.00

    4" Basic PolyMax cascade adapter (2"-3" depth)

    Regular price
    $5.00
    Sale price
    From $5.00
    Unit price
    per 

    $5.00

    4" Basic PolyMax cascade adapter (3"-4" depth)

    Regular price
    $5.00
    Sale price
    From $5.00
    Unit price
    per 

    $5.00

    4" Basic PolyMax cascade adapter (6"-8" depth)

    Regular price
    $10.00
    Sale price
    From $10.00
    Unit price
    per 

    $10.00

    4" Basic PolyMax cascade adapter (4"-6" depth)

    Regular price
    $10.00
    Sale price
    From $10.00
    Unit price
    per 

    $10.00

    Call for more information or to place an order!

    Our customer service squad and sales team are always here to help.

    (905) 238-1771