株式会社立売堀製作所 designs and manufactures indoor and outdoor fire hydrants, hydrant valves, fire-brigade inlets, riser outlets and sprinkler and foam system valves and cabinets. Its 広範囲型2号消火栓 assemblies are approved under 認評栓第26号 to 第39号 and its 流水検知装置 hold 日本消防検定協会 型式承認, published as a 消火栓弁認定番号一覧 in the company’s own technical documentation. It is a 正会員 of 日本消火装置工業会; supply references include Toranomon Hills Business Tower.