About This Design:Plastic Hose Barb Fittings are suitable for aquarium, swimming pool, fountain, drip Irrigation, food and beverage, laboratory and chemical processing and handing, etc.Universal Compatibility for Aquatic Enthusiasts: Our fittings ensure leak-proof connections in aquarium setups, fit for standard hose sizes, making them ideal for maintaining a pristine aquatic environment. They protect your marine life's health.Specification:Material: PlasticCondition: Brand NewSuitable for Hose Inner Diameter: 6.4mm / 1/4"Length: 40mm / 1.6"Package includes 5 Pcs Plastic Hose Barb FittingsEasy Installation:Insert the Fitting, Push the hose firmly over the barb of the fitting.Start with a slight angle to ease the process, then straighten to ensure full engagement.Please Note:Remember, while the install steps are generally applicable, always consult specific instructions provided by the maker, especially for specific uses in precision or chemical environments, which may require unique considerations.