10 pieces 4mm PP check valve for aquarium air pump, 1-way water shut-off valve for aquarium, white

Features: 1. Replacement: This one-way check valve can be used to replace a broken check valve and fits perfectly, preventing the backflow of gas or liquid. 2. High pressure resistance: The shut-off check valve has sufficient load capacity and rigidity to meet actual usage requirements within the appropriate range. 3. High performance: The check valve has good thermal performance, strong chemical stability, and is non-toxic and odorless. 4. Excellent PP material: The check valve is made of high-quality PP plastic, which is wear-resistant and durable. 5. Application: This one-way check valve is widely used in aquariums, food and beverage, medical equipment, the chemical industry, etc. Specifications: Item Type: Check Valve Material: PP Function: Connects the hose to prevent the backflow of gas or liquid Scope of Application: Aquarium, food and beverage, medical equipment, chemical industry Size: Approximately 4 mm/0.2 inches Package List: 10 x Check Valves