Multi-Port Drain Adapter
Applications Requiring Air Gaps
For connections that require drain air gaps, a patented DrainGap™ Multi-Port Drain Adapter with a first-of-its-kind, two-stage integrated drain air gap ensures code compliance and minimizes splashing for up to four drain connections—saving space, cost and time.
Connections & Materials
- 100% lead-free
- 1/2" female NPT threaded inputs
- Durable, non-corrosive Schedule 40 PVC
- Installs vertically almost anywhere needed
- Different models accept 1-1/2” pipe, or use 2”, 3” or 4” couplings (not included)
- 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
- Dialysis systems
Multi-Port Drain Adapter with Air Gap
Applications Requiring Air Gaps
$ 39.99- Flow rate up to 3 GPM
Orders $98+ ship free to contiguous USA!
Looking for compatible fittings?
DrainGap'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 A112.1.3
This Standard establishes physical requirements and methods of testing for air gap fittings for protecting against back siphonage and back pressure backflow.
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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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IAPMO PS 65
This Standard covers air gap units intended for water conditioning equipment installation and specifies requirements for materials, physical characteristics, markings, and performance testing methods for protecting against backsiphonage and backpressure backflow.
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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
| Material | White PVC |
| Inputs | 1/2" Female NPT (Qty 4) |
| Output | 1.5" Pipe or 2" Coupling |
| Diameter | 4.5" 11.43 cm |
| Height | 7" 17.78 cm |
| Weight | 12.9 oz 365.7 g |
| Max Operating Temperature | 140º F 60º C |
| Max Flow Rate - Backsiphonage | 4 gpm 15.14 Lpm |
| Max Flow Rate - Backpressure | 11 gpm 41.64 Lpm |
| Max Operating Pressure | N/A |
| Typical Medium | Water |
| Vertical Orientation | Yes |
| Continuous or Intermittent PSI | Yes |