https://www.sorinc.com/products/1540-side-mounted-non-bleed-pneumatic-level-switch/
1540 Side Mounted - Non-Bleed Pneumatic Level Switch
pneumatic level switchnon bleedsidemounted
https://shop.dwprouty.com/Product/s/bmVyjZ/1540-Side-Mounted-Pneumatic-Level-Switch
SOR 1540 Side Mounted Pneumatic Level Switch
SOR 1540 Side Mounted Pneumatic Level Switch
pneumatic level switchsorsidemounted