Attwood Marine Bilge Vent 1439F1 – Durable Boat Ventilation AccessoryManufacturer: ATTWOOD MARI Availability: 54 in stockSKU: A7J1439F1Attwood Marine Bilge Vent 1439F1 – Durable Boat Ventilation Accessory $8.33 Qty: Add to cart Ship toSelect countryUnited States of America *Other *Shipping MethodNameEstimated DeliveryPriceNo shipping optionsApply Custom wishlist OKAdd to wishlistAdd to compare listEmail a friend1: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.End SectionFor 4 Inch Inside Diameter Ventilation Systems Using One Or More 1348 Collector BoxesHull Mounted Modular VentWhitePlasticWith #8 FastenersABYC Standard ApprovedAttwood 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 corro