Air-Trap DMS Series

The Air-Trap DMS Series is a dual-mode waterless trap that handles both negative and positive pressure HVAC condensate removal in a single unit — ideal for systems where pressure conditions may vary or be unknown. Maximum negative pressure: 1" WC. Maximum positive pressure: 5/8" WC. Available connection sizes: 3/4" (25mm) and 5/8" ID drain hose. Overall length: 2.95 inches. Patented design prevents air leakage in both directions, operates dry between drain cycles, and meets IMC Code Section M307.2.4.1. Patent: US12130045B1.