The Marley Leafslide Rainhead with model number #RWLS is used to prevent debris from blocking drains, direct rainwater into storage for reuse and improve the quality of water collected when being used for drinking purposes. It is UV rays and rust resistant, ensuring a longer service life. It is made of polyvinyl chloride ensuring rigidity and durability. It maximizes the amount of rainwater you collect, by ensuring a high flow rate. The Marley Leafslide Rainhead is used to prevent debris from blocking drains, direct rainwater into storage for reuse and improve the quality of water collected when being used for drinking purposes. It is UV rays and rust resistant.