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A black HDPE adapter that connects a gutter downspout to buried 4 in. single wall corrugated drain pipe, moving roof runoff away from the foundation. The pipe end snaps onto the corrugated pipe without glue, tape or clamps. It comes in two versions: one for 3 x 4 in. downspouts and one for 2 x 3 in. downspouts. It is a simple, low-cost fitting rather than a full drainage kit, so it suits homeowners tying an existing downspout into a buried line.
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Lowest price we've seen: $5.99 on Nov 12 at Ring's End. Tracked across 11 stores since Nov 12.
This downspout adapter connects a gutter downspout to buried 4 in. corrugated drain pipe. It carries roof run-off away from the house so water doesn't pool at the foundation. It is made of black HDPE (high-density polyethylene), which does not rust underground and matches the pipe it joins.
The downspout slips into the top of the adapter. The other end snaps onto 4 in. single wall corrugated pipe, with no glue, tape or clamp needed. It comes in two sizes, one for 3 x 4 in. downspouts and one for 2 x 3 in. downspouts. Measure the downspout outlet first to choose the right one.
The pipe is laid in a shallow trench that slopes away from the house to a lawn outlet or drywell. Added lengths of pipe join with a 4 in. snap coupler. Keeping the adapter above grade makes a clogged spout easy to clear. One adapter serves one downspout.
