Sealey exhaust fume extraction system 230v 370w twin duct sealey efs102 wall mounting electric fan fitted with heat resistant ducting and exhaust pipe cone with exhaust gas analyser port ideal for bikes cars and car derived vans requires installation onto workshop wall and ducting to expel exhaust gases does not include electrical switch gear ideal for smaller garages and workshops where space is limited available in single or twin hose configurations sealey efs102 exhaust fume extr