1" Inline Non-Return Check Valve for Marine & RV Drainage Systems
14-Day Return PolicyYou have 14 days after receiving your item to request a return. Return shipping costs are the customer’s responsibility unless the item is damaged, defective, or incorrect.
1" Inline Non-Return Check Valve
Stop backflow and protect your pumps with this heavy-duty in-line non-return valve. Engineered for marine bilge, grey water, and RV sewage systems, it ensures reliable one-way water flow, prevents water hammer, and reduces pump wear — keeping your drainage system running efficiently.