Perko Clam Shell Ventilator - Chrome Plated Brass - 4" x 3-3/4"

<b>Clam Shell Ventilator - Chrome Plated Brass - 4" x 3-3/4"</b><br><br><b>Specs:</b><br><UL><LI> Chrome Plated Brass<br><LI> Dimensions Base: 4" x 3-3/4"<br><LI> Width Opening: 2-1/2"<br><LI> Height Opening: 1-5/8"<br><LI> Screw Size: #6</LI></UL> <!--- cis2:mm5sl5hm --->