Installation Guide

Regular Aerator
Inside
1
Using the above measurements, find the
right key size for your hidden aerator.
2
Line up the teeth of the key with the
notches of the hidden aerator.
3
Twist to loosen the aerator.
How To Replace Your Hidden Aerator
MULTI-FIT AERATOR KEY
Male to Female OR Female to Male:
Select Aerator Key
Aerator Wrench Measure hidden
aerator based
on coin size
comparison
REGULAR
HIDDEN
Hidden Aerator
Inside
Male Spout/
Female Aerator
Female Spout/
Male Aerator
©2019 Danco, Inc.
Irving, TX 75062
10909
Regular OR Hidden:
Thread
OUTSIDE
Thread
INSIDE
Thread
INSIDE
Thread
OUTSIDE
Aerator
Type
Tiny Junior (TJ)
= Penny Size
Standard (ST)
= Quarter Size
Aerator Wrench =
Fits Multiple Sizes
Junior (JU)
= Nickel Size
Tom Thumb (TT)
= Dime Size
M20x1 Male
Threaded
M18.5x1 Female
Threaded
M18x1 Male
Threaded
M16x1 Female
Threaded
15/16" Male
Threaded
55/64" Female
Threaded
13/16" Male
Threaded
3/4" Female
Threaded
Coin Size
Comparison