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i think www.aquariumplants.com has it for a good price aswell. i have heard that the bubble counters will leak eventually. and the solinoid only last so long. most of the members are going with www.rexgrigg.com regulators. its 125 for the complete regulator and solinoid but well worth the money. he also sells manifold kits so u can split up between like 10 different tanks if u want of maybe only 2.