M Model Port size ALF400 ALF400-06 ALF500 ALF600 ALF800 ALF900 D A B 80 85 90 100 100 100 C 239 247 296 320 339 345 44 46 48 51 59 63 ALF500/600 ALF400 ALF800/900 Model A 174 174 234 234 B 70 70 108 108 C 16 16 30 30 D 7 7 7 7 E 91 91 121 121 F 182 182 242 242 G 15 15 16 16 H 24 24 40 40 I 382 382 422 422 J 414 414 472 472 K 428 428 L M 449 482 5 5 5 5 ALT-5 ALT-5-IS ALT-9 ALT-9-IS Dimensions: Auto Feed Lube Dimensions: Auto Feed Tank Series ALF400 to 900, ALT-5/-9 954 Float switch Contact point capacity: AC: 15 VA, DC: 15 W Contact point construction: 1a, 1b 1 4, 3 8, 1 2 3 4 3 4, 1 1 11 4, 11 2 2 Port size D Width across flats 12 Float switch Lubrication plug Port size Port size D