Features 1、Made of high quality Acrylic material, Light weight, high transparency, reliable, and not easy to be broken. 2、Can be hung on a fish tank or filter tank to fix the sea source titration pump or the titration hose of any other titration pump brand. 3、There are 4 hole sites in total, which can fix 4 titration hoses, making it stable and improving the efficiency. 4、Maximum thickness for fixing glass : 15 MM, more convenient to use. 5、Long size screw to make sure for clamping the tank well and clamping the doing pump soft tube or air pump soft tube well. Specifications: Made of high quality Acrylic material, Light weight, high transparency, reliable, and not easy to be broken. Can be hung on a fish tank or filter tank to fix the sea source titration pump or the titration hose of any other titration pump brand. There are 4 hole sites in total, which can fix 4 titration hoses, making it stable and improving the efficiency. Maximum thickness for fixing glass : 15 MM, more convenient to use. Long size screw to make sure for clamping the tank well and clamping the doing pump soft tube or air pump soft tube well. Package List