Sea-Dog Collector Box 331204, 4 Inch Hose Vent Fitting, Interchanges with Attwood 1341 and 1342

The Sea-Dog Collector Box, part number 331204, is a marine ventilation fitting designed to work with a louvered vent to draw air into or exhaust air out of an engine compartment or below-deck space. It is built for a single 4 inch hose connection and pairs with either the stainless steel Louvered Vents (Sea-Dog 331200 or 331201) or the injection molded ABS Louvered Vents (Sea-Dog 337210 or 337211) to complete a full intake or exhaust ventilation run.

Constructed of injection molded polypropylene, the 331204 resists corrosion and holds up to the marine environment better than unprotected metal fittings. It measures 15-1/2 inches at dimension A, 2 inches at dimension B, and 4 inches at dimension C, with a vent area of 9.10 square inches through its single 4 inch hose port. This collector box is interchangeable with Attwood part numbers 1341 and 1342, making it a straightforward swap when replacing an existing collector box of that type. It ships as a single unit and is intended for boat builders and owners installing or upgrading a hose-fed ventilation system.

Specifications

• Brand: Sea-Dog
• Manufacturer Part Number: 331204
• Product Type: Collector Box
• Material: Injection Molded Polypropylene
• Hose Size: 4 inches (1 connection)
• Vent Area: 9.10 square inches
• Overall Length (A): 15-1/2 inches
• Width (B): 2 inches
• Height (C): 4 inches
• Weight: 0.222 pounds
• Standard Pack: 5 each
• UPC: 035514331227
• Compatible Louvered Vents: Sea-Dog 331200, 331201, 337210, 337211
• Interchangeable With: Attwood 1341, 1342

Fitment

Universal marine ventilation fitting for use with a 4 inch hose; not model-specific.

Replaces (OEM)

• Attwood 1341
• Attwood 1342

Frequently Asked Questions

What is the Sea-Dog 331204 used for? The Sea-Dog 331204 is a collector box that connects to a 4 inch hose and works together with a louvered vent to bring air into, or exhaust air out of, an engine compartment or other below-deck space.

What hose size does the 331204 collector box take? It is built for a single 4 inch hose connection, with a vent area of 9.10 square inches at that port.

What vents is the 331204 compatible with? The 331204 is designed to pair with the stainless steel Sea-Dog Louvered Vents (331200 or 331201) or the injection molded ABS Sea-Dog Louvered Vents (337210 or 337211).

Is the Sea-Dog 331204 interchangeable with an Attwood part? Yes, the 331204 is interchangeable with Attwood part numbers 1341 and 1342, so it can be used as a direct replacement for those parts.

What material is the collector box made of? Injection molded polypropylene is used for the 331204, which resists corrosion in the marine environment.

How much does the 331204 collector box weigh? It weighs 0.222 pounds.

What are the dimensions of the Sea-Dog 331204? The 331204 measures 15-1/2 inches (A) by 2 inches (B) by 4 inches (C).

Does the 331204 come with mounting hardware or the vent included? The 331204 is the collector box only; it ships as a single unit and the louvered vent (331200, 331201, 337210, or 337211) is a separate part.

How is the 331204 different from the 331202 and 331203 collector boxes? All three share the same 15-1/2 inch by 2 inch by 4 inch overall size, but the 331204 is fitted for a single 4 inch hose with 9.10 square inches of vent area, while the 331203 is fitted for two 3 inch hoses (12.80 square inches) and the 331202 ships without holes for custom installations.

Can the 331204 be used for both intake and exhaust ventilation? Yes, the collector box is designed to facilitate both air intake and exhaust when installed with a compatible louvered vent.

What is the standard package quantity for part 331204? The Sea-Dog 331204 has a standard pack of 5 each.

What is the UPC for the Sea-Dog 331204 collector box? The UPC for the Sea-Dog 331204 is 035514331227.