Description: Night Vent Keep for Mushroom Espag Locks for Timber, PVC and Aluminum Casement Windows.
Specification: : Keep allows for both air tight and night vent locking positions for windows fitted with mushroom espag locks.
Materials:: Manufactured from high quality steel in accordance to BS 1449 Part 1, Zinc plated, Trivalent passivated and sealed.
Technical information: Meets the corrosion test requirements of BS EN 1670:2007 Grade 5 (480 hours) and mechanically tested in excess of 50,000 cycles.
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