Alb Filter Thread Guide
In this manual we will introduce you to various methods for determining the thread size of your valve. We know that even the best methods can lead to errors, so please do not hesitate to contact our support if you have any questions or problems. Your Alb Filter Team wishes you a lot of fun in determining your thread.
Content of this article
Free adapter exchange
It is best to determine your tap thread before buying the Alb Filter Duo.
If you need a different adapter than the M24 adapter included in the scope of delivery, we will exchange it after consultation with you.
Please send us an e-mail after your order with the required adapter and your order or order number.
Which methods can I use to determine a thread?
+ + + Very precise (recommendationhlen)
- By means of an electronic caliper gauge
- By means of manufacturer information (operating instructions)
+ + Partly exact
+ Little accurate (not recommended)
Thread dimensions at a glance
Have you measured your thread yet? Here you will find an overview of the common dimensions.
If your design is not listed please contact us!
M16 AG
M16.5 AG
M18 AG
M18.5 AG
M19 AG (rare)
M20 AG
M21 AG (rare)
M21.5 AG (rare)
M22 AG
M24 AG
Instructions for determining your thread size
Preparation
Step 1:
Remove aerator / aerator regulator
Most water taps have a jet regulator, also called aerator. To determine the thread, we have to unscrew it.
Step 2:
Determine thread connection form
External thread
An external thread is when the serration,
as in this illustration, faces outwards.
The thread is always measured at the outer edge of the serration.
Internal thread
An internal thread is when the serration points to the inside.
The thread is always measured at the inner edge of the serration.
Measuring method I
Caliper gauge (analog / digital)
Determination of an external thread (AG)
The thread is measured at the outer edge of the serration. To do this, position the caliper gauge as shown in the following figure and read off the value.
Determination of an internal thread (IG)
The thread is measured at the inner edge of the serration. To do this, position the caliper gauge as shown in the following figure and read off the mm value.
Measuring method II
Ruler / measuring tape
Determination of an external thread (AG)
Place the zero value of the ruler on the outer edge of the serration. Now read the mm value on the opposite side of the thread.
NOTE: The external thread makes it easier to determine an AG with the ruler than an IG.
Determination of an internal thread (IG)
Place the zero value of the ruler on the inner edge of the serration. Now read the mm value on the opposite side of the thread.
Measuring method III
Euro coins comparison (not exact)
Still having trouble?
Here they get support
Photograph your faucet aerator / aerator with tape measure, ruler or calipers attached. Proceed as follows:
- Place the unscrewed aerator on an even surface and photograph it from above at an angle. The side with the thread must be on top.
- Hold a tape measure (preferably a vernier caliper), or alternatively a folding rule, diagonally across the thread of the aerator. Here it is important that we can estimate how wide the diameter is.
- Finally, we need a picture of your faucet to better assess the connection situation (is the shower head perhaps unsuitable?).
Send the pictures to us: info@alb-filter.com
