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Since 1910 Ames Fire & Waterworks has been a leader in the manufacture of valves and fittings for all types of pipeline systems. Ames products serve the fire protection, irrigation and waterworks markets and have a reputation of excellence in the industry. Ames production process promotes consistent quality control and prompt customer service. If excellence matters to you, then specify Ames.

The Ames 4000SS is a reduced pressure assembly (RPA). It is available in  2 1/2″-10″ sizes and  has been in production since 1990. The body is made of stainless steel. The Watts 994 is a private label of the 4000SS.