Spirotherm’s Spirotop features low-profile and high-compression valves that combine to give users a leak-resistant, high-point vent that fits just about anywhere. Moreover, it resists dirt particles and sudden pressure shocks, which can cause ordinary vents to leak. When filling or draining a system, venting high points, or eliminating air locks, the automatic air vent offers reliable, problem-free results.

Spirotherm. www.spirotherm.com