A three parameter isolator having a working axis, the three parameter isolator comprising: first and second isolator end portions (42, 44) opposed along the working axis; a main spring mechanically coupled between the first and second isolator end portions; a tuning spring mechanically coupled in parallel with the main spring between the first and second isolator end portions; and a rolling seal damper assembly mechanically coupled between the first and second isolator end portions in parallel with the main spring and in series with the tuning spring, the rolling seal damper assembly comprising: a first hydraulic chamber; a second hydraulic chamber fluidly coupled to the first hydraulic chamber; first and second rolling diaphragm seals (112, 114) partially bounding the first and second hydraulic chambers, respectively; a damper piston configured to translate along the working axis; and a linear guide system physically preventing movement of the damper piston along axes perpendicular to the working axis; wherein the linear guide system comprises: a first sliding interface located between a first face of the damper piston and the first rolling diaphragm seal, as taken along the working axis; and a second sliding interface located between a second, opposing face of the damper piston and the second rolling diaphragm seal, as further taken along the working axis. first and second isolator end portions (42, 44) opposed along the working axis; a main spring mechanically coupled between the first and second isolator end portions; a tuning spring mechanically coupled in parallel with the main spring between the first and second isolator end portions; and a rolling seal damper assembly mechanically coupled between the first and second isolator end portions in parallel with the main spring and in series with the tuning spring, the rolling seal damper assembly comprising: a first hydraulic chamber; a second hydraulic chamber fluidly coupled to the first hydraulic chamber; first and second rolling diaphragm seals (112, 114) partially bounding the first and second hydraulic chambers, respectively; a damper piston configured to translate along the working axis; and a linear guide system physically preventing movement of the damper piston along axes perpendicular to the working axis; a first hydraulic chamber; a second hydraulic chamber fluidly coupled to the first hydraulic chamber; first and second rolling diaphragm seals (112, 114) partially bounding the first and second hydraulic chambers, respectively; a damper piston configured to translate along the working axis; and a linear guide system physically preventing movement of the damper piston along axes perpendicular to the working axis; wherein the linear guide system comprises: a first sliding interface located between a first face of the damper piston and the first rolling diaphragm seal, as taken along the working axis; and a second sliding interface located between a second, opposing face of the damper piston and the second rolling diaphragm seal, as further taken along the working axis. a first sliding interface located between a first face of the damper piston and the first rolling diaphragm seal, as taken along the working axis; and a second sliding interface located between a second, opposing face of the damper piston and the second rolling diaphragm seal, as further taken along the working axis.