This air vent is designed to manually remove any air trapped from your hybrid or plumbing system. Simply turn the knob until air in your system is completely expelled and water starts to come out. If you're looking for other fittings, tools and accessories, check out our range here.
More info and resources
Everybody wants a leak-free job. So to make sure you follow the correct system installation procedures, head over to our specialist Hybrid Hub. You'll find loads of technical and training resources, plus pretty much everything you need to know about Hybrid and Pressfit: www.pressfitsolutions.com