Build Better Pro
Back
Plumbing · Backflow & Cross-Connection
Question 1 of 5
An air gap between a faucet spout and a sink is at least:
No gap required
25 mm (1 in) or 2× pipe diameter, whichever is greater
150 mm (6 in)
300 mm (12 in)
Next
Home
Code
DIY
Exams