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- With non-return valve, flow-through pipe aerator and automatic air vent- Safety combination in accordance with DIN 1988- Incl. hose fitting- Chrome-plated- Projection: 100 mm- The automatic air vent valve is positioned in front of the non-return valve. This enables the supply line to be completely drained at the start of the frost period. - By shutting off the supply pipe and opening the drain valve, automatic draining of the supply pipe in the frost area is guaranteed.
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