DescriptionThis product is a practical and professional range hood check valve.Made from great quality, wear- resistant anddurable, you can reassure to use, not easy to damage, very practical. Anice kitchen ventilator accessory, very practical. Cost effectively, youcan buy this practical product at an affordable price.Features- Color: Silver -Material:Stainless steel - Size: 19.50X19.50X4.20cm/7.66X7.66X1.65in- Size(Clamp): 55.00X1.20X1.00cm/21.61X0.47X0.39in-Note:160 represents a pipe that fits 160mm inside diameter - Well selected high grade material, very durable for a long term use.The check valve is carefully crafted, good texture, not easy to damage. - Exhaust vent cover louvered close automatically when not in use andthe range hood outside vent stops unpleasant odors, noises,or rain flowing back through the dryer exhaust vent cover flap. - This product's appearance design is simple and generous, but the product is reliable and practical. - The product can be used for restaurant's kitchen, personal home kitchen, hotel and some other places. - Cost-effective, you can buy this practical product at an affordable price.