Multi-Port Drain Adapters
Applications Not Requiring Air Gaps
The patented DrainDock® Multi-Port Drain Adapter accepts multiple drain connections in one small hub—saving space, cost and time. DrainDock is easy to install, and its 1/2" FNPT injection-molded ports accept up to eight drain connections in one small hub.
Materials & Dimensions
- 100% lead-free
- 1/2" female NPT threaded inputs (2, 4 or 8)
- Durable, non-corrosive schedule 40 PVC
- Installs vertically almost anywhere needed
- Top hub for 1-1/2" pipe, adapter or open
- Bottom hub for 1-1/2" pipe, adapter or 2" coupling
- Resists chlorine and chloramine corrosion
- Resists hardness and scale buildup
Industries & Typical Applications
- Residential, commercial & light industrial
- Food service & appliance drain lines
- Water treatment, softeners & general filters
- Reverse osmosis & deionization systems







Multi-Port Drain Adapter
Applications Not Requiring Air Gaps
$ 39.00Orders $98+ ship free to contiguous USA!
Looking for compatible fittings?
DrainDock's ports are compatible with any 1/2" NPT threaded fitting. For your convenience, we offer a small selection of fittings for our most popular applications.
View FittingsStandards Certification & Compliance
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ASME A112.18.2
This Standard covers plumbing waste fittings of sizes NPS-2 and smaller, not including plumbing supply fittings, other devices, or flexible water connectors under continuous pressure, all of which are covered by separate Standards.
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ASTM D2665
This specification refers to the requirements and test methods associated with the virgin polyvinyl chloride (PVC) construction of plastic drain, waste, and vent pipe and fittings. Covered fittings are subjected to hydrostatic burst pressure and impact-resistance testing.
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ASTM F1498
This specification establishes requirements for dimensions and gaging of taper pipe threads used on threaded plastic pipe and fittings.
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CSA B125.2
This Canadian Standard (harmonized with ASME A112.18.2) has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.
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NSF 61
NSF/ANSI 61 addresses the human health effects of drinking water system components. This performance-based standard evaluates the amount of contaminants that leach from the products into potable drinking water. The origin for this standard was lead reduction/ removal. Any lead that elutes into the water at over 0.25% fails this standard.
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NSF 372
NSF/ANSI 372 establishes a standardized methodology for the determination and verification of product compliance to minimize lead contaminants. This standard is consistent with the United States Safe Drinking Water Act (SDWA) and its lead-free plumbing requirements, as well as the requirements of individual U.S. states such as California.
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Specifications
Models | DD152 / DD154 / DD158 |
Material | White PVC |
Inputs | 1/2" Female NPT (Qty 2, 4, or 8) |
Diameter | 4" 10.16 cm |
Height | 4" 10.16 cm |
Weight | 7.6 oz 215.5 g |
Max Operating Temperature | 140º F 60º C |
Typical Medium | Water |
Vertical Orientation | Yes |
Continuous or Intermittent PSI | Yes |