DISCOVERY®, POLY/CARB®, PREMIUM QUALITY, FREEDOM®, SUPER-BLUE®, BIO-SUBSTRATE®, FLOWMASTER, PREMIUM-MIX, SCRUBMASTER, CLEANMASTER, MINI-HEATER, BIO/CARB, ULTRA-GUARD®, and RAT GUARD are trademarks of GINGER, INC.
CLEAR-FREE®, CONCORDE®, CBM®, QUICK-CLEAR® and CANISTAR® are registered trademarks of Penn-Plastics, Inc.
NIAGARA® is a registered trademark of Oscar Enterprises, Inc.
AQUA-CLEAR®, DYNAFLO®, POWER 1® and BLUE-LINE® are registered trademarks of the Rolf C. Hagen, (USA), Corp. and Rolf C. Hagen, Inc., Montreal, Que., Canada
PENGUIN®, AUTO-FLO®, MAXI-FLO®, REGENT®, AQUA TECH®, NEPTUNE®, ULTRA-FLO®, MAGNUM®, EMPEROR™, RITE-SIZE®, ECLIPSE®, EXPLORER® and MARS® are registered trademarks of Marineland Aquarium Products, division of Aquaria, Inc.
WHISPER®, BIO-BAG®, SECOND NATURE®, TRIAD™, TETRATEC™, and PULSAR® are registered trademarks of Tetra/Second Nature®.
CRYSTAL-CLEAN® is a registered trademark of Longlife Pet Products (HARTZ).
SUPREME®, PME®, AQUAMASTER® and SKILTER® are registered trademarks of Eugene G. Danner Mfg., Inc.
MILLENNIUM™ is a trademark of Aquarium Systems, Inc.
Aqueon™ is a registered trademark of Central Garden & Pet