The Nidel® Model 34HD anti-siphon vacuum breaker is intended for irrigation purposes and designed to protect hose connections from contamination where freezing temperatures are expected. Manual draining is required and provides easy, sure drainage during cold weather. Uses include outside hose bibbs, wash racks, dairy barns and swimming pool areas.
Woodford® Nidel® Vacuum Breaker, Anti-Siphon, 3/4 in Nominal, Female Hose Thread x Male Hose Thread, 125 psi, 120 deg F, Single Check Backflow, Brass/Stainless Steel Body, Brass, Domestic