Silent, safe and reliableWorry-free safety engineeringUnique mounting systemAdjustable flow diffuser and aeration valveCertified, accurate flow rate Penguin Powerheads remain silent and deliver their flow consistently and reliably. Safe for both salt and freshwater aquariums because of their heavy-duty construction. Mount anywhere with suction cup or bracket and have an adjustable air valve. Special strainer keeps debris from fouling the impeller.Model #GPHModel #GPH550145 forward660R170 reverse w/reverse flow sponge660170 forward1140300 forwardPlease click on "More Information" for installation and maintenance instructions.

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