HEAVY DUTY BLACK BAG:
 These are replacement Heavy Duty Black MAIN Filter bag 
IMPORTANT: WHEN ORDERING PLEASE MEASURE THE LENGTH OF YOUR STAILESS STEEL DEVASTATORS IF: 
20" LONG, ORDER = 20" DEV HD BAG!
22" LONG, ORDER =  22" DEV HD BAG!
NBE-1 FILTER ORDER = NBE-1 HD BAG!