1-inch neck fit. Designed for standard 1-liter (33.8 oz) salon bottles; not compatible with short-neck or specialty bottle designs 2-Pack, white. Outfit matching shampoo & conditioner bottles with a clean, uniform look. Precise 4-cc dose. Consistent output per press for controlled dispensing and less waste Assembly & fit. When assembled, fits bottles up to 9″ tall and can be trimmed to your bottle’s height for full pickup For shampoo, conditioner, liquid soap & lotion. Suitable for home or salon use This universal pump is designed to be compatible with a wide range of popular salon brands, including Redken, Biolage, Matrix, Pureology, Fanola, Paul Mitchell, and more. It is specifically made for standard neck liter bottles, ensuring a perfect fit for these products. Please note that this pump will not fit short neck bottles such as those from Amika and Olaplex. It is not suitable for bottles with short or wide necks. To make sure this pump is the right fit for your bottle, please refer to our Bottle Compatibility Video Guide. Watching this guide will help you verify the pump’s compatibility and avoid any inconvenience.