Next Product Collins Youldon PPV Vent (Aluminium) 4 mbar (0.4 kPa) Part No. JTS000292 Category: Vent Valves Description Additional information Brand Description 1 1/4″ BSP With 4 mbar (0.4 kPa) Nominal Vacuum Setting Additional information Manufacturer Collins Youldon Product Vent Valves Brand Collins Youldon Related products Vent ValvesAlfons Haar Exhaust Vent Vapour Recovery Valves, Vent ValvesAlfons Haar Vapour Recovery (2001 on) Compartment Vent Vent ValvesAlfons Haar Sequential Vent Valve Vent ValvesCollins Youldon PVV Vent 20 mbar (2.0 kPa)