Parker 1/2" Bulkhead Union

Mount a tubing connection through a panel, tank wall, or enclosure with the Parker 1/2" Bulkhead Union. This fitting passes through a drilled hole and locks in place, providing a secure 1/2" tube-to-tube pass-through with a clean, finished appearance on both sides. Built by Parker Hannifin from durable POM polymer, it weighs 0.07 lbs and resists the corrosion that plagues metal fittings in wet environments, making it ideal for the demanding conditions found around water-treatment equipment.

Through-Wall Connections

Bulkhead unions are the right tool whenever a line must cross a barrier, such as the wall of a storage tank, a filter cabinet, an equipment panel, or an enclosure. The threaded body and retaining nut clamp firmly to the panel, keeping the connection stable and preventing the tubing from pulling through or wobbling under pressure. On both faces, the push-to-connect ports accept 1/2" tubing without tools, so you get a tidy, professional pass-through on each side of the wall.

• Tube x tube bulkhead union for panel pass-through
• Size: 1/2" on both quick-connect ports
• POM polymer construction resists corrosion and scaling
• Retaining nut secures the fitting to a wall or panel
• Push-to-connect design needs no wrenches or sealant
• Clean, professional appearance on both sides

To install, drill the appropriate hole size in your panel or tank wall, insert the bulkhead body, and tighten the retaining nut to lock it firmly in place. Then square and deburr each 1/2" tube end and press it into the ports on either side until seated against the internal stop. The collets grip automatically and hold under pressure, and a gentle pull confirms each side is secure. To release a tube later, press the collet ring inward and withdraw it. With Parker's trusted engineering and corrosion-resistant acetal construction, this bulkhead union delivers a neat, leak-resistant pass-through for residential and light-commercial water-treatment systems.

For a lasting installation, drill the mounting hole precisely and make sure the panel or tank wall is sound where the bulkhead clamps. Done correctly, this fitting gives you a stable, professional pass-through that keeps tubing organized on both sides of the barrier and stands up to years of continuous water-treatment service.