DUCT ELBOWS - 505-508

505 - VERTICAL 90°
 

SIZE            ITEM              QTY
 8 X 8..........3057................6
10 X 8..........3059................6
12 X 8..........3060................6
14 X 8..........3061................4
16 X 8..........3062................4
18 X 8..........3063................4
20 X 8..........3064................4
22 X 8..........3065................4
24 X 8..........3066................4

506 - VERTICAL 45°
 

SIZE              ITEM             QTY
 8 X 8............3070..............6
10 X 8............3071..............6
12 X 8............3072..............6
14 X 8............3073..............6
16 X 8............3074..............6
18 X 8............3075..............6
20 X 8............3076..............6
22 X 8............3077..............6
24 X 8............3078..............6

 

507 - HORIZONTAL
 

SIZE              ITEM            QTY
 8 X 8............3082..............6
10 X 8............3083..............6
12 X 8............3084..............6
14 X 8............3085..............6
16 X 8............3086..............6
18 X 8............3087..............6
20 X 8............3088..............6
22 X 8............3089..............6
24 X 8............3090..............6

508 - HORIZONTAL 90°
 

SIZE            ITEM              QTY
 8 X 8..........3094................6
10 X 8..........3095................6
12 X 8..........3096................6
14 X 8..........3097................6
16 X 8..........3098................4
18 X 8..........3099................4
20 X 8..........3100................4
22 X 8..........3101................4
24 X 8..........3102................4
30 X 8..........3069................4
500 & 501 starting collars - both fittings have wide flanges and tabs for locking into plenum opening.  The 500 style has a larger throat area at the plenum opening for increased airflow efficiency.  Using the style 500 vs. 501 will save 25 effective feet.  

Champion manufactures both radius and square throat duct elbows.  Radius elbows are more efficient but have larger bend radius which may preclude their use in limited space.  The square throat type fittings make abrupt direction changes in limited space but may cause additional effective lengths of up to 75' depending on duct size.