Water Treatment ComponentsDouble Male ConnectorContact Us to PurchaseFeatures Copper electroplated for long service life. Suitable for use in RO drinking systems, purifiers, water treatment systems...etc. Specification Model Type Spec. Remark FI-0064-1 double male connector 1/4NPT x 1/4NPT Made in Taiwan FI-0026 double male connector 1/4NPT x 1/8NPT Made in Taiwan FI-0025 double male connector 1/8NPT x 1/8NPT Made in Taiwan FI-0024 double male connector 1/4NPT x 3/8NPT Made in Taiwan FI-0023 double male connector 3/8NPT x 3/8NPT Made in Taiwan Application Prevents leaking. Match tubing to same diameter pipe fittings.