Search Catalog   By Item #By Keyword         All Categories    Options All Categories > Betterfly Valves > Options    Options Click on a Product to view details. Micro/solenoid Unit  (6) Microswitch Unit - pneumatic  (7) Teflon Coated Viton Seat  (7) Viton Seat surcharge with valve  (7) Microswitch Unit - manual  (4) Multi-position Handle  (6)