Product Details: 

• Tube Fitting
• Made by Regal Chlorinators
• Part # ZZ-260  
• 1/2" Outside Diameter
• Replacement Part for the Following Ejector Assembly Model #s: A-922, A-922S, A-923, and A-923S  
• Replacement Part for the Following Check Valve Assembly Model #s: E-227 and E-227S  
• 1 Part Required per Assembly

This item is highlighted as reference # 5 on the spec drawing shown on this page.