Smith 8-1/2 in. Cast Iron Deck Drain Kit, 4 in. - SMITH DX1240-C-4 DECK DRAIN KIT, WITH UNDERDECK CLAMP, DUCO FINISHED CAST IRON 17 in. DIAMETER FLANGE BODY, SEDIMENT BUCKET, CAST IRON GRATE, 4 in. INSIDE CAULK OUTLET. (special sale, inventory reduction, qty limited))
Smith 8-1/2 in. Cast Iron Deck Drain Kit, 4 in.
$1,146.00 SALE $251.95
(Savings: $894.05)
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Smith DX1240-C-4, 8-1/2 inch Deck Drain Kit, with Underdeck Clamp, Sediment Bucket, Duco Finished Cast Iron 17 inch Diameter Flange Body, Cast Iron Grate, "SAFE-SET" Sediment Bucket, 4 inch Inside Caulk Outlet. Price/Each.


  • Special sale, inventory reduction, qty limited.


Used on promenade roof decks and balconies where waterproof traffic bearing covering is to be applied. Sediment bucket prevents debris from entering the drainage system.

UNDERDECK CLAMP should be used on ALL installations (except poured-in-place). Roof drains must be firmly secured to the roof with an underdeck clamp, otherwise, due to snow loads, rain loads and regular expansion and contraction, the drain will work in and out of the roofing, causing roofing membranes to flex and fail. Brittle tar will crack and leaks will occur.


  • Overall Diameter: 17 inch.
  • Recommended deck opening: 9 1/4 inch.
  • For waterproofing thicknesses up to 3/16 inch thick.

Available OPTIONS:

  • Membrane clamp (R), Underdeck Clamp (C), No-hub adaptor (Y), Polished Bronze Top (PB), Nickel Bronze Top (NB), Securing Holes (SH), Threaded outlet (DX1240T), Caulk Outlet (DX1240C).

More Information


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Call us at 1-800-474-7570 or 602-272-8128
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similar product terms: smith deck drain, 8-1/2 deck drain, smith dx1240, large deck drain, promenade roof drain, deck drain, balcony drain, flat drain, promenade drain

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