Air Gap International air gaps are easy to install, can share the standpipe, as well as provide back flow and back siphonage protection. They provide more than twice the code required minimum air gap opening.  Water Softener air gaps generally are installed near the laundry facilities in the garage, basement or in the laundry room for convenient access to the house drainage piping and secondly, there almost never exists a dedicated (unused) standpipe just waiting to be used by the instaler for surmounting their drain line air gap. Thus the critical feature of the air gap is its ability to share a standpipe with the washing machine drain hose.  Properly designed and installed, air gaps, like check valves, allow water to flow only in the desired direction. The key characteristics for an air gap is protection from back flow and back siphonage.

– Unit approximately 8¨ (20.32 cm) long.
– AG150-001 Unit design lab tested at 15 G.P.M. (56.8 Liters/minute). Recommended usage is up to 7 GPM. (26.5 Liters/minute).
– All noted threads are American NPT threads.