The RILLSRO diverter valve assembly converts the standard 1/2 inch supply to 3/8 inch (10 mm) compatible for RO UV water purifiers/filters. Parts are made from durable brass. Compatible with RO / UV water purifier with 3/8” connection for Pre Filter Set. Diverter Valve assembly for connecting sink tap to RO UV water purifier/filter inlet. Alon Brass valve, full set sales pack includes 1 inlet coupling & valve set. Suitable for 3/8 inch tubing made up of Brass material. This is made from good quality material. Care instructions keep away from the items or products which may cause damage to this product. Leak Proof Stop the water leakage from your water filter attached to the sink tap or best water filter spare to keep in tool box handy for immediate change.