The CostGard™ Condensate Drain Seal is inherently reliable. It is simple, has no moving parts, is self-cleaning, self-regulating and maintenance free. This reliability has been proven during more than twenty years of successful field operation. Tens of thousands are in operation in various types of facilities, indoors and outdoors, in every state in the United States plus Puerto Rico and the District of Columbia. Not one has become blocked or failed to operate properly.

Some well known users of the CostGard™ Condensate Drain Seal are listed below:


The Boeing Company
Lockheed Martin Company
Ford Motor Company
Hawaiian Electric Company
International Paper Company
Walgreens Company *
Kohl’s Department Stores
TJ Maxx - Marshall's - Home Goods
Gander Mountain
Kum & Go Convenience Stores
Kentucky Fried Chicken
Burger King -Schuster Enterprises, Inc.
The White House – Eisenhower Executive Office Building, DC
U.S. Embassy – Kabul, Afghanistan
Smithsonian Institution – American History Museum, DC
Pro Football Hall of Fame – Canton, OH


Paris ISD – Paris, TX
Longview ISD – Longview, TX
The Brook Hill School – Bullard, TX
University of Texas – Tyler, TX
University of Texas – Dallas, TX
University of Texas Health Center – Tyler, TX
University Of North Carolina – Wilmington, NC


Albany Medical Center – Albany, NY
Alkermes Pharmaceutical – Wilmington, OH
Citrus Medical Plaza – Vero Beach, FL
Shriner’s Hospital – Tampa, FL
LSU Health Sciences Center – Shreveport, LA
VA Hospital – Shreveport, LA
DeHaven Eye Clinic – Tyler, TX
Heritage Nursing Home – Quitman, TX
Huggins Hospital – Wolfeboro, NH
Baxter Healthcare – Wilmington, DE
McKeesport Hospital – McKeesport, PA
St. Louis Children’s Hospital – St Louis, MO
Winn Army Community Hospital – Ft. Stewart, GA
Donalsonville Pediatrics Center – Donalsonville, GA
Presbyterian Hospital – Charlotte, NC

Providence Everett Medical Center – Everett, WA

Rosebud Health Service Hospital – Rosebud, SD

Dialysis Center – Spindale, NC

University of Texas Health Center –Tyler, TX

*The satisfaction expressed by these users is typified by a Walgreens’ internal e-letter by a maintenance person to the project engineer.  It reads:

Walgreen's e-letter (2001)

“... in the ... years we have been getting the RTUs with the Trent CostGard™ drains on them, the evaporators are the cleanest we have EVER seen them!  ... nothing like the old style TRAP that just clogged up in summer and froze in the wintertime.  ... and that has helped to eliminate ... calls regarding water flowing back into the stores... They truly are paying for themselves...

St. Louis Maintenance”


Walgreens now has more than 8000 stores equipped with the CostGard™ Condensate Drain Seal.