Water Treatment ComponentsMale ConnectorContact Us to PurchaseFeatures Suitable using in RO drinking system, purifier, water treatment system...etc. Specification Model Type Spec. Remark FI-0051 male connector 3/8 OD x 1/2 PT Made in Taiwan FI-0055 male connector 3/8 OD x 3/8 PT Made in Taiwan FI-0054 male connector 3/8 OD x 1/4 PT Made in Taiwan FI-0053 male connector 1/4 OD x 1/2 PT Made in Taiwan FI-0052 male connector 1/4 OD x 3/8 PT Made in Taiwan FI-0050 male connector 1/4 OD x 1/8 PT Made in Taiwan FI-0048 male connector 1/4 OD x 1/4 PT Made in Taiwan FI-0056 male connector 1/4 OD x 1/4 PT, blue Made in Taiwan FI-0046 male connector 1/4 OD x 1/8 PT, blue Made in Taiwan Application Avoiding leaking, need to collocate the same diameter pipes to fittings.