Description: Premium Material: High strength 304 stainless steel aquarium hose adapter, aquarium tube size converter ensuring durability and reliability in both freshwater and saltwater aquariums Optional Size: Available in two size options - inner diameter of 12mm to 16mm, or 16mm to 22mm, catering to various needs for different hose sizes Leakproof Design: Strong and sturdy stainless steel aquarium hose joint fitting provide a secure, tight seal, ensure efficient water flow in your fish tank Easy to Install & Use: Quick and easy to connect and disconnect hoses, aquarium tubing pipe connector offering strong sealing and reliable connectivity for stable operation in your aquarium setup Versatile Use: This aquarium hose joint adapter converter fits most standard aquarium tubing, deal for connecting pipe, hoses, and tubing in aquariums, ponds, or hydroponic systems, enhances water circulation and system functionality Specification: Material: Stainless Steel Size Chart: 12mm to 16mm or 16mm to 22mm Package Includes: 1 Piece Aquarium Hose Adapter