| 
  
 Each of the following
makes test kits designed for swimming pools, spas, hot tubs:    
  
    
      | Hach    | 
      (800) 227-4224 | 
     
    
      P.O. Box 389       
        Loveland CO 80539 | 
      (303) 669-2932
        fax | 
     
    
      | . | 
       | 
     
    
      | 
 LaMotte  
       | 
      (800)
344-3100 | 
     
    
      P.O. Box 329  
 Chestertown MD 21620 | 
      (410) 778-6394
        fax | 
     
    
      | . | 
       | 
     
    
      | Taylor       | 
      (800) 837-8548 | 
     
    
      31 Loveton Circle 
        Sparks MD 21152
       | 
      (410) 771-4291
        fax | 
     
   
 
  
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