Neoprene pad 1/4" thick under spring regardless of style. Adjust load transfer while Motion Restraints feature large diameter springs with OD not less that 80% of rated deflection height, except 1580 with 2-1/4" travel to collaspe. For compact support of heavy loads, some JQ's include inner springs. For low profile support of heavy loads, JQE's have clustered springs.

Aluminum Rapid Mount Frame / Plaster Frame Titus mounting frames make installation of grilles, diffusers and other ceiling components in plaster and sheet rock ceilings as simple as inserting them in a standard T-bar type ceiling. For typical applications, the frame has adjustable fastening clips which adapt to a variety of plaster and sheet rock ceiling thicknesses.

The CRD-2 is a UL555C classified damper designed to limit the radiant heat transfer through an opening in the ceiling membrane of a fire-resistance rated floor/ceiling assembly of three hours or less.