Danco Slip-Joint Extension Tube, 1-1/2 x 12 in
Product description
A sink drain connection that falls short can turn a small plumbing adjustment into a frustrating under-sink job. The Danco Slip-Joint Extension Tube is intended to add reach to a slip-joint drain setup, with PVC construction and hand-tight installation that needs no tools. Its listed size is 1-1/2 x 12 in, so the key buying step is matching that sizing to the connection and space you have. The product information doesn’t specify which drain assemblies it fits, so don’t treat the size alone as a guarantee of compatibility.
Quick sizing guide
Before choosing this tube, compare the listed 1-1/2 x 12 in sizing with the part you’re connecting and the available room beneath the sink. Check how the existing slip-joint pieces meet, and whether adding an extension will bring the drain run to the position you need without forcing the connections out of alignment. If you’re replacing a section, keep the old part nearby while comparing dimensions, that makes it easier to spot a mismatch before you start.
The practical use is straightforward: when a drain connection needs extra reach, this tube offers a dedicated extension instead of replacing a larger stretch of plumbing. But will it solve every under-sink fit problem? Not necessarily. The listing doesn’t identify compatible assemblies or describe included connection hardware, so those details matter if your setup uses an unusual arrangement or you need a confirmed fit before buying.

Pros
- Hand-tight installation means no tools are needed for the stated installation method.
- PVC is described as chemical resistant, a relevant feature for a drain component.
- The 1-1/2 x 12 in size gives you a concrete measurement to compare with your existing setup.
- An extension tube can be a more focused fix than replacing a larger portion of a drain run when only added reach is needed.


One limitation: the available product details don’t say whether nuts, washers, or other fittings are included. If your repair depends on replacing those parts too, this listing alone doesn’t confirm that you’ll have everything required. Worth considering if you need a simple extension and can match its size to your existing slip-joint connection. Better avoided if you need documented compatibility with a specific drain assembly or a complete set of replacement fittings.
Spec sheet

- Name: Danco Slip-Joint Extension Tube
- Type: Slip-joint extension tube
- Size: 1-1/2 x 12 in
- Material: PVC
- Color: White
- Installation: Hand-tight, no tools necessary
- Other stated feature: Chemical resistant
Should you buy it?
This Danco tube makes the most sense for a modest under-sink drain adjustment where the existing connection uses a compatible slip-joint setup and the listed size matches your measurements. Its appeal is practical rather than elaborate: PVC construction, a stated chemical-resistant material, and a tool-free hand-tight installation. That can be preferable to taking on a broader replacement when the problem is simply that the connection needs an extension.
Choose a different approach if you’re changing the drain layout, need a connector for a known but different size, or can’t verify how this tube meets your existing parts. Those jobs call for fit details the product information doesn’t provide. For a straightforward reach adjustment, it’s a plausible part to consider, for a repair that depends on confirmed compatibility or included hardware, get those details first.
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