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The SMC 6430290 Series 410 check valve is made with nickel-plated brass and has a Viton o-ring seal. It has a piston mechanism that moves when fluid flow hits it, sealing the seat and exposing the piston's cross holes. It has a 1/4" female NPT inlet and a 1/4" male outlet.
Dimensions: 1.38" L x .69" D
Details: