2 Piece Transparent Plastic 3 Piece Check Valves for Brewed Wine and Beer

Air locks-- suitable for white grapes, honey wine, red wine secondary ferment., home brew accessory; One-way valves-- material, healthy and odorless, safe to use, Supplies; Lids kit--three-piece check valves are gentle, easy to clean and use, Wine; Brew one-way valves--2pcs in total, easy to replace, small and lightweight, easy to store, stoppers for wine bottles; 3-piece air locks--professional three-piece check valves, suitable for professional or personal use, wine stoppers

What's in the box
2 x Locks