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1 x 150mm Round 90 Degree Bend1 x HR-500 DP Heat Exchange Unit1 x Anti Vibration Duct Suspension Rings - 200mm1 x HCFB/4-315mm plastic impeller plate fan1 x WS - Reversing Switch from Helios Fans1 x TecFire Intumescent Damper - Rectangular 400x400mm1 x Bellimo TF24S Actuator 24V1 x TecFire Intumescent Damper - Rectangular-100x100mm1 x Spiral Ducting 3 Meters - 315mm1 x KVK Slim 355 - Low profile Semi Acoustic Box Fan1 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x FSD-TD 550 x 200 Fire and Smoke Damper, S, GALV Case, GALV Blades, PM230-TF (SC)1 x Duct Fast Clamps - 250mm1 x FSD-TD 225mm Fire and Smoke Damper, Type C, EASY FIX AF, GALV Case, GALV Blades, PM230-TF (SC)1 x TecFire Intumescent Damper - Rectangular 350x350mm1 x TecFire Intumescent Damper - Rectangular 250x250mm2 x FSD-C Motorised Failsafe Single Blade Fire/Smoke Damper with Actuator - 180mm1 x Traditional T-Series Wall Fan - TX12WL1 x K 315 L Sileo Metal Tube Fan1 x Flexible PVC Ducting - 220x901 x Female Ducting Connector - 160mm1 x MEV Spider Additional Spigots1 x Anti Vibration Duct Suspension Rings - 80mm1 x DS-2 2-Speed Switch (3 Phase)1 x Envirovent 4 Way Remote Control Switch - SWHBKRF-41 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Slimline 150 High Efficiency, Low Profile Heat Recovery Unit1 x Remote Indicator RED/GREEN - AM121 x DOL Starter with Isolator - Three phase1 x FSD-TD 400 x 250 Fire and Smoke Damper, S, EASY FIX AF, GALV Case, GALV Blades, PM230-TF (SC)1 x Remote Fan Status Indicator - RF11 x FSD-TD 150mm Fire and Smoke Damper, Type C, EASY FIX AF, GALV Case, GALV Blades, PM230-TF (SC)
Reviews
DAOSL Back Draft Damper
DAOSL Back Draft Damper
£ 10.53

Look good, works well, except the shaft of the lanellae cuts...