Air Inlet Model 145-VFG made of high quality polyurethane foam. Flange model with flange on the front side.Divided air direction; up to 35% air enters only from the top side; above 35% also from the bottom sideControl by means of one stainless steel side armThis inlet has a curved inner flap. External Flange size: 730mm x 350mm Wall opening size required: 670mm x 290mm (This leaves a 20mm expansion gap around the inlet) Depth from back of flange: 95mmPlease note that the connection kit, closing catch and Vermin mesh, whilst shown, are not included, if you require these please add: TPI 205b Connection kit TPI 307 Closing Catch TPI 101 - Vermin Mesh It is recommended to have vermin mesh installed on your inlets for added bio-security to stop birds and other vermin getting your poultry house. This inlet is suitable for almost all applications. With a middle hinged inner valve the air will be divided and also flows underneath the valve when it is opened over 35%. The inlet is controlled by means of a stainless steel side arm. This inlet is executed with a curved inner valve so when it is opened for maximum ventilation air is also guide downwards to the animals. Also known as a Readan inlet.