PRODUCTS: Utility Duct Fans
Series 31-U: 12"
S31U--126-W---STFCF3		Series 31-U: 16"
S31U--166-W---STFCG3		Series 31-U: 20"
S31U--206-W---STFCH3
Series 31-U: 34"
S31U--346-W---STFCL3		Series 31-U: 42"
S31U--426-W---STFCL3