U.S. ROSS double valve / solenoid valve / directional valve 
 ROSS company is a professional manufacturer of pneumatic products in the world famous and has 70 years of history, is a professional pneumatic valve design pioneer, and world-renowned for its high-quality products and state-of-the-art design. Administrative headquarters and design centers are located in the United States, respectively, the number of factories built in the United States, the United Kingdom, Germany, Japan and other countries have the same quality services to users around the world. 
 The main products are: double valves, flow valves, directional valves, manual valve and FRL. 

 Some models are as follows: 

 Economy (with pressure switch) double valve 
 3573B2632 
 3573B2640 

 3573B2644 
 3573B2645 
 3573B4620 
 3573B4632 
 3573B4640 
 3573B4642 
 3573B4643 
 3573B4644 
 3573B4645 
 3573B4652 

 Double valve with LG monitor 
 3573D3191 3573D3195 
 3573D3192 3573D3196 
 3573D4211 3573D4215 
 3573D4212 3573D4216 
 3573D5211 3573D5215 
 3573D5212 3573D5216 
 3573A4142 3573A4162 
 3757A5142 3573A5162 
 3573A6152 3573A6172 
 3573A5152 3573A5172 
 3573A6162 3573A6182 
 3573A7162 3573A7182 
 3573A7152 3573A7172 
 3573A8162 3573A8182 

 Double valve with EP monitor 
 J3573A3261 J3573A3263 
 J3573A4261 J3573A4263 
 J3573A5261, 
 J3573A3259 J3573A3264 
 J3573A4259 J3573A4264 
 J3573A5259 J3573A5264 
 J3573A3258 J3573A3260 
 J3573A4258 J3573A4260 
 J3573A4258 J3573A5260 
 J3573A3257 J3573A3262 
 J3573A4257 J3573A4262 
 J3573A5257 J3573A5262 
 D3573B3606 D3573B3604 
 D3573B3276 D3573B3270 
 D3573B4606 D3573B4604 
 D3573B4276 D3573B4270 
 D3573B5236 D3573B5230 
 3573A4141 3573A4161 
 3573A5141 3573A5161 
 3573A6151 3573A6171 
 3573A5151 3573A5171 
 3573A6161 3573A6181 
 3573A7161 3573A7181 
 3573A7151 3573A7171 
 3573A8161 3573A8181 

 Without flange connection valves Model 
 3573A4201 3573A4221 
 3573A5201, 3573A5221 
 3573A7201 3573A7221 

 With a flange connection of the valve model 
 3573B4143 3573B4163 
 3573B5143 3573B5163 
 3573B6153 3573B6173 
 3573B5153 3573B5173 
 3573B6163 3573B6183 
 3573B7163 3573B7183 
 3573B7153 3573B7173 
 3573B8163 3573B8183 

 Filter 
 5B01B0100 5B01B0200 
 5B02B0100 5B02B0200 
 5021B2007 5022B2007 
 5021B3027 5022B3027 
 5021B4007 5022B4007 
 5021B2008 5021B2005 
 5021B3008 5021B3005 
 5021B4008 5021B4005 
 5021B5018 5021B5015 
 5021B5008 5022B5005 
 5021B6008 5022B6005 
 5022B7019 
 5022B8019 
 5022B7018 
 5022B8018 
 5022B9018 
 5031B2008 5032B2018 
 5031B3008 5032B3018 
 5031B4008 5032B4008 
 5031B4028 5032B4028 

 Regulator 
 5B01B0010 
 5B02B0010 
 5211B2015 
 5211B3015 
 5211B4015 
 5211B2017 
 5211B3017 
 5211B4017 
 5211B5027 
 5211D5017 
 5211D6017 
 5211C7017 
 5211C8017