attwoodmarine.com WATER SYSTEMS & VENTILATION 39 Modular Vents 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" I.D. ventilation systems • End sections have two holes for #8 fasteners. For Use with Collector Box Section Color Installation Hole Size OEM Part # Part # 1348 (one or multiple) Center White 2-1/2" x 17-3/4" 1438F1 — Ends White 2-1/2" x 17-3/4" 1439F1 — 1438 7/8" 5-3/8" 19-1/8" 2-3/4" Clamshell Vent Provides a seal and splash protection for vent holes, wire and hose openings. • Sizes to fit most common applications. • Durable 300 series stainless steel construction. • Three holes for required #6 fasteners. Vent Width Size Max Hole Size Hose/Wire Max Size OEM Part # Part # 1-3/16" 1-9/16" L x 1/2" H 1" 7/16" 66399-1 66399-3 2-3/16" 2-1/4" L x 9/16" H 1-1/2" 9/16" 66400-1 66400-3 Storage Vent Use to vent lockers and storage areas. Provides over six square inches of ventilation opening. • Will not accept a ventilation hose. • Corrosion-resistant plastic. • Two holes for required #6 fasteners. Height Neck Flange Dia. Installation Hole Size Color OEM Part # Part # 1-1/16" 5/8" 3-3/16" 3-1/16" to 3-1/8" Black 1353-1 — Twist-On Hose Flange • For use with 3" I.D. wire-supported ventilation hose. • Hose installs from topside by turning the flange into the hose spiral, passing the hose through the deck hole, then mounting ventilator. No hose clamps needed. • Corrosion-resistant plastic. • Four holes for required #10 fasteners. Color Installation Hole Size OEM Part # Part # Black 3.5" 1405-1 1405-3 Cowl Ventilator • For use with 3" I.D. wire-supported ventilation hose. • Flexible hose flange is screwed onto hose, then vent snaps onto the flange. Flange is non-corrosive plastic. • Vent constructed of chrome-plated zinc. • Installs with #8 fasteners. • Dimensions: 5-5/16” W x 6” L x 2-1/4” H (neck extends 1" below deck) Installation Hole Size OEM Part # Part # 3-1/4" x 3-12" 1364A1 1364A3 Collector Box For use with modular vents, with 4" I.D. wire-supported ventilation hose. • For two 4" I.D. hoses • Corrosion-resistant plastic. • Installation Hole Size: 2-3/4" x 18" For Use with Vent(s) Depth OEM Part # Part # 1438, 1439 5" 1348-1 — 66400
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