Please note: the physical slightly color or difference, does not affect the use, please do not mind, thank you! Colour:Photo Color Material:rubber Package Contents: 3 x Air Bleeder Screen Cap Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Material: This air bleeder is designed with quality material and precision manufacturing, ensuring it works efficiently and reliably every time Part Number: 190106Z Product Function: Replace damaged and dirty screen caps 190106z, protect the inlet valve tube clean and free of debris. Easy To Install:Please turn off the filter pump first, and then remove it after all the pressure in the pump is released. Clean the water pipe and replace it directly. Practical: The 190106z sieve cap is made of rubber material for long service life and high sieving accuracy, effectively preventing fine debris from entering the valve tube.