Siroflex coupler is a Double Male adaptor - is a high quality Italian made product specifically developed for ease of use in a variety of environments: home, garden, on the boat, or on the job – Used to join two couplers together that are on the end of hoses or to join other fittings to a hose that have a coupler on them - Manufactured from high quality UV resistant ABS Plastic with no metal parts Ensuring long lasting performance under tough weather Conditions