DrainGapMulti-Port Drain Adapter

Applications Requiring Air Gaps

For connections that require air gaps, a patented DrainGap® Multi-Port Drain Adapter with a first-of-its-kind, two-stage integrated 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
DrainGap Multi-Port Drain Adapter with Air Gap - DH154-AG DrainGap Multi-Port Drain Adapter with Air Gap - DH154-AG Case DrainGap Multi-Port Drain Adapter with Air Gap - DH304-AG DrainGap Multi-Port Drain Adapter with Air Gap - DH304-AG Case DrainGap Multi-Port Drain Adapter with Air Gap - DH404-AG DrainGap Multi-Port Drain Adapter with Air Gap - DH404-AG Case

DrainGap
Multi-Port Drain Adapter with Air Gap

Applications Requiring Air Gaps

$ 49.00 $ 59.00 $ 59.00 $ 588.00 $ 708.00 $ 708.00
DH154-AG Standard Flow- Accepts 1.5" Pipe or 2" Coupling
- Flow rate up to 3 GPM
DH304-AG Higher Flow
- Requires 3" Coupling (Not Included)
- Flow rate up to 7 GPM
DH404-AG Max Flow
- Requires 4" Coupling (Not Included)
- Flow rate up to 11 GPM
Output Size
Packaging

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 Fittings

Standards Certification & Compliance

QAI Certification

QAI Listed

View PDF

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
Material White PVC
Inputs 1/2" Female NPT (Qty 4)
Output Requires 3" Coupling
Diameter 4.5"
11.43 cm
Height 8.75"
22.23 cm
Weight 15.1 oz
428.1 g
Max Operating Temperature 140º F
60º C
Max Flow Rate - Backsiphonage 7 gpm
26.50 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
Material White PVC
Inputs 1/2" Female NPT (Qty 4)
Output Requires 4" Coupling
Diameter 4.5"
11.43 cm
Height 8.375"
21.27 cm
Weight 15.1 oz
428.1 g
Max Operating Temperature 140º F
60º C
Max Flow Rate - Backsiphonage 11 gpm
41.64 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

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