Water Treatment ComponentsBall ValveContact Us to PurchaseFeatures Water output adjustable. Works with feed water connector. Metal material, long service life. Specification Model Type Spec Remark VA-0140 ball valve, blue bat 1/4OD x 1/4NPT electro-copper material VA-0141 ball valve, blue bat 3/8OD x 1/4NPT electro-copper material Application Suitable for use in RO drinking systems, purifiers, water treatment systems...etc.