Terracotta Gravity Flap Air Vent & Back Draught Shutter 4 Inch Ironmongery British made

British made

12 x   9mm            ( 3/8 inch )12 x 13mm            ( 1/2 inch )12 x 19mm            ( 3/4 inch )10 x 25mm               ( 1 inch ) 4  x 32mm         ( 1 1/4 inch ) Measurement is the tool hole size

Can be fixed in position with clips or ducting tape

Adaptor converts to a round opening that can be attached to a soil stack or extractor fan with a 100mm - 120mm PVC hose

Terracotta Gravity Flap Air Vent & Back Draught Shutter 4 Inch Ironmongery British madeProduct Description Terracotta Air Vent & Back Draught Shutter For 4 Inch (100mm) Extractor Fan Ducting Gravity Flap Vent Wall vent with gravity flaps and weather sill. Helps prevent backdrafts. Manufactured with UV stable materials to reduce colour fade. Suitable for round 100mm (4 Inch) ducting. Overall size: 140mm x 140mm. British made. ABS thermoplastic. Complies with Part F building regulations. Suitable for commercial and domestic use. Other