Attwood hull-mounted vents are designed to install by fastening as a complete unit from either inside or outside the hull. Ventilation hose (not included) twists into the bottom of the box to form a raised water barrier. Plastic vents are corrosion-resistant, will not discolor. All collector boxes and vents are designed for intake or exhaust and meet ABYC H-2 cross sectional area requirements. Modular construction to accommodate any ventilation opening size by interlocking two or more center sections. End sections interlock to the center section for a finished appearance. For 4 Inch I.D. ventilation systems using one or more 1348 collector boxes. End sections have two holes for number 8 fasteners.

Attwood Marine 1438F1 Attributes

• Compatibility: 4 Inch Inside Diameter Ventilation Systems Using One Or More 1348 Collector Boxes
• Type: Hull Mounted Modular Vent
• Finish: Gloss
• Color: White
• Material: Plastic
• With Fasteners: Yes
• With Collector Box: No

Attwood Marine 1438F1 Features & Benefits

• Plastic Vents Are Corrosion-Resistant, Will Not Discolor
• Modular Construction To Accommodate Any Ventilation Opening Size By Interlocking Two Or More Center Sections
• End Sections Interlock To The Center Section For A Finished Appearance
• All Collector Boxes And Vents Are Designed For Intake Or Exhaust And Meet ABYC H-2 Cross Sectional Area Requirements
• Limited 1 Year Warranty

Attwood Marine 1438F1 Warranties

• Attwood Warranty 2009.pdf

Attwood Marine 1438F1 Technical Bulletins

• 1438_BUL.pdf