
High Quality - Made of high quality ABS resin with silicone rubber diaphragm, this check valve is durable, stable, acid and alkali resistant for a long time use. Keep excellent performance at temperatures from 77 F to 140 F. Function - It can be used to prevent backflow of fluid or compressed air. Design - With pagoda-shaped card slot design, it can be fixed firmly without leakage. Widely Used - It can be widely used in automobile, machinery, household, agriculture, etc.