Installation Sheet

A
B
D
E
F
G
H
1.
2.
3.
4.
5.
6.
1-1/2”
HOLE
SINGLE PORT AIR GAP INSTALLATION
Model #s 3020, 4020, 8520, 9020
Unscrew and remove
top clamp nut (D)
from both threadings
on piping. Slide
gasket (E) o piping
and remove.
Pull air gap (A) o
of upper cap nut
(B). Unscrew and
remove cap nut
from piping (C).
Slide gasket down and screw top clamp nut
back onto piping. Adjust the two clamp nuts
to t countertop thickness. (No plumbers
putty is required).
Screw cap nut back
onto top of piping
until snug. Slide air
gap over cap nut
and top clamp nut.
Be sure to have
overow holes (F)
facing sink.
Slide small intake hose
(G) over small connector.
Slide larger drainage hose
(H) over large connector.
Tighten hose clamps.
Turn on water supply
and check for leaks.
From underneath counter top, t air gap
piping upward through 1-1/2” hole.
VEN-038-SPAG Rev. C
41180 Raintree Court • Murrieta, CA 92562
1-888-304-0660 • 951-304-0520
www.waterstoneco.com