The Inline Sink/Bath Assembly Breech is required in the rough-in stage of your build. This product can be used for both a sink and a bath and are a requirement for our Assembly Tap range, which you can view here:
 

Please note: All ABI assembly taps require an in-wall breech as they are sold separately and are dependent on the specifics of your project. 
 

If you wish to choose the colour and style of your assembly taps later, you will need to purchase an in-wall breech and spindles. These can be purchased separately to enable you more time to decide on your finish. You can find these here.