3/4"npt pneumatic radiator valve, straight male union connection, 3cv, 3-10psi spring range, push on air connections for 1/4" o.d. plastic tubing, proportional normally open valve action, for use with steam or hot water systems, includes 2-5psi spring in box

3/4"npt pneumatic radiator valve, straight male union connection, 5cv, 3-10psi spring range, push on air connections for 1/4" o.d. plastic tubing, proportional normally open valve action, for use with steam or hot water systems, includes 2-5psi spring in box

1/2"npt pneumatic radiator valve, angle male union connection, 2cv, 3-10psi spring range, push on air connections for 1/4" o.d. plastic tubing, proportional normally open valve action, for use with steam or hot water systems, includes 2-5psi spring in box

3/4"npt pneumatic radiator valve, angle male union connection, 3cv, 3-10psi spring range, push on air connections for 1/4" o.d. plastic tubing, proportional normally open valve action, for use with steam or hot water systems, includes 2-5psi spring in box

3/4"npt pneumatic radiator valve, angle male union connection, 5cv, 3-10psi spring range, push on air connections for 1/4" o.d. plastic tubing, proportional normally open valve action, for use with steam or hot water systems, includes 2-5psi spring in box