The Jerguson Gage & Valve 320X34X17 853371 Borosilicate Gage Glass V16756-8 is a high-quality level gauge glass made specifically for HVAC and refrigeration systems. Manufactured in Germany by the reputable brand Jerguson, this model offers accurate and reliable readings for monitoring fluid levels. With its durable borosilicate construction and precise measurement capabilities, this gage glass is essential for maintaining optimal performance in industrial and commercial settings.