Products tagged with 'knurled screw air vent'

The 15mm Endfeed Air Vent Caps EFAVC‑15 are durable copper fittings with a knurled screw cap designed to release trapped air and prevent airlocks in hot and cold water systems and central heating pipework. Easy to install and ideal for trade or DIY plumbing, these vents help maintain efficient system performance and reliability.