High-performance model with high stability and low pressure drop. Rolling membrane. Device for manual and semi-automatic condensation drainage. Polyamide bowl with external protection (Mod. 3/8"and 1/2" cup quick-coupling with anti-release safety mechanism). Can be fixed to the wall using holes or brackets (not included). Collected quantity of condensate (1/4" and 3/8" 42cc-1/2" 100 cc). G 1/8" pressure manometer coupling.