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Model 3275B Large Square Vent

Large square-flange eyeball vent. Made from aircraft-grade 6061-T6 aluminum and hard anodized, it weighs just 5 oz. and mounts in a 2-3/4" hole. The mounting flange is 3" square with a 2-1/2" mounting hole pattern, and has 25 degrees of freedom from the vent centerline (50% more than in our first generation vents.) This is a direct replacement for the "whisperflo" black plastic vents. Flows 30% more air and eliminates 99% of the leakage associated with the plastic vents when closed. Available in clear and black. Price: $150.00.

Model R3275B Large Round Vent

This The round flange version of our large square-flange eyeball vent. Fits in a 2-3/4" hole, and has a 3" outside flange diameter. Click here for another side view. Available in clear and black. Price: $160.00.

Model 2252 Small Round Vent

Small round-flange eyeball vent. Made from aircraft-grade 6061-T6 aluminum and hard anodized, it weighs just 3 oz. and mounts in a 2" round hole. Outside flange diameter is 2-1/4", and has 25 degrees of freedom from the vent centerline. The vent is secured with a mounting ring that will accept a 1-1/2" or 2" scat hose (please specify when ordering). This vent has an opening of 1.2" which is much larger than vents typical of this size. Available in clear and black. Price: $150.00.

Model 22167 Small Round Vent

Small square-flange eyeball vent. Made from aircraft-grade 6061-T6 aluminum and hard anodized, it weighs just 3 oz. Mounting flange is 2.20" square, with a hole mounting pattern of 1.70". Vent adjustment is 25 degrees of freedom from the vent centerline, amd has an opening of 1.2" which is much larger than vents typical of this size. Available in clear and black. Price: $140.00.

Model XXXX Military Large Vent

Large round-flange eyeball vent. Available only via special order. Available in clear, black, or combination.