درج شیر غیر برگشتی پلاستیکی

Plastic Non Return Valve Insert can effectively prevent water from flowing back into the water meter and to avoid billing errors.

Plastic Non Return Valve Insert can prevent water from flowing back into the water meter and avoid billing errors.

It is installed at the inlet side of the water meter.

Size: 1/2”*3/4”, 3/4”*1”, 1”*1 1/4”, 1 1/4”* 1 1/2”, 1 1/2”*2”, 2”*2 1/2”

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