Watts 909AGF, Air Gap for 1-1/4″- 3″Condition:* New Surplus Stock, In OEM Packaging. As Pictured.Additional Notes:* Provides an unobstructed, physical separation between the discharge end of a potable water supply line and an open receiving vessel* Accessory air gap kit* For nuisance RV discharge* For vertical or horizontal installation* Applications: For 1-1/4″ – 3″ 009/909 pressure reduced zone assembliesWatts 909AGF