Feature:1. Made of high quality stainless steel, it is durable, wear-resistant, corrosion-resistant and can be used for a long time.2. The 1/4in barbed inlet can be connected with oxygen regulator or air pump.3. 2 micron aeration stone, it can be directly connected with any pot, pump or counterflow/plate wort chiller.4. Excellent workmanship, stable performance, safety and reliability, good sealing and leakproof performance.5. Perfect home brewed beer accessories, this set can help you brew authentic beer. Specification:Condition: 100% Brand NewItem Type: Homebrew AccessoriesMaterial: Stainless SteelEnd: 1/4in Barb, 12mm Pagoda HeadWeight: Approx. 236g / 8.3ozSize: Approx. 8x9.7cm / 3.1x3.8in.w-e-text table td,.w-e-text table th,.wang-edit-text table td, .wang-edit-text table th{border: .5pt solid #000;};.w-e-text table,.wang-edit-text table{border: 1px solid #000 !important;} Package List:4 x Homebrew Accessories