[Onecolor]
Name: UPVC flap check valve
Material: Plastic
Model: 20~63mm
Color classification: 20mm 25mm 32mm 40mm 50mm 63mm all marked with inner diameter size
Color: dark gray
Connection method: pipe and pipe fitting glue connection
Valve structure: other.
Packing: 1pcs PVC check valve
Note: Manual measurement, there are some small errors, please understand. Thank you