Specification Brand : Alvinlite BulletPoint1 : Package including: Pne valve in each package, there are 4 different size for your choice, including 1.5in 2in 2.5in 3in 4in. BulletPoint2 : Material: This Water pmp valve is made of high quality PVC material, it is durable and reliable, can withstand long time working in water. BulletPoint3 : Function: The liquid can not be returned to the water source tank while the pump stops working intermittently, and the suction pipe is filled with liquid to facilitate the start of the pump. BulletPoint4 : Quality ensure: This foot valve is professionally and practically designed, manufactured in pricesion process. each product has been fully tested to ensure they have good working performance. We have secured the quality of this product so that you can use it safely. BulletPoint5 : [High Quality]The swing check valve is made of high quality stainless steel, which has good resistance to and high pressure performance, so it is sturdy and durable for long term use. Color : Black ExteriorFinish : Stainless Steel ExternallyAssignedProductIdentifier1 : 0739665513487 ExternallyAssignedProductIdentifier2 : 739665513487 ItemName : Alvinlite PVC Check Valve|Water Pump Foot Valve Low Pressure Flat Check Valve for Fluid Machine Black Water Pump ItemPackageDimensions_Height : 15.1 centimeters ItemPackageDimensions_Length : 11.1 centimeters ItemPackageDimensions_Width : 11.6 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : industrial-check-valves Manufacturer : Alvinlite Material : Stainless Steel ModelNumber : Hyuduor0c5gfgn7p PartNumber : BTAlvin-HCA-GS24011-01-He23 ProductDescription : Excellent Features: The bottom valve, also known as the check valve, is a low pressure flat valve . The pump is to ensure that the liquid flows in one direction in the suction line, allowing the pump to work properly. When the pump stops working intermittently, the liquid can not be returned to the water source tank, and the suction pipe is filled with liquid to facilitate the start of the pump. Adopts high quality PVC material which can withstand long time working in water. Professionally and practically designed with good working performance. Alvinlite Specification: Item Type: Pump Foot Valve Material: PVC Color: Black Type: 1.5in 2in 2.5in 3in 4in(Optional)