IBS Leafield Avon Inflatable A4 Plug Deflator Stopper

The A4 inflatable boat or liferaft valve was manufactured by Leafield Marine and was fitted as standard to earlier Avon inflatable boats and life ~rafts along with Humber's and Dunlop boats.
A simple, yet robust, inflation valve that is bonded directly to the boat inflation tube or collar.
The valve and cap is made of moulded neoprene rubber so that it is flexible and can take the knocks from diving or fishing gear.
The A4 valve cap includes a pin which is used to deflate the valve by inserting into the valve to open the sprung loaded diaphragm.