GPI roof curbs are designed for flat, insulated or non-insulated roof decks. Constructed of 18 gauge galvanized steel and fully formed on three sides with a single, fully welded seam.

• Designed to fit 34" roof curb cap
• 2-inch mounting flange
• Rigid, fiberglass insulation
• Welded, straight-sided construction

Steel, Adjustable, high performance three cone diffuser The TMS is a square ceiling diffuser that delivers supply air in a true 360º pattern with low pressure drop. The uniform, nearly horizontal jet from the outer cone maintains effective room air distribution even when the air volume varies over a considerable range. All sizes have three cones, giving a uniform appearance where different neck sizes are used in the same area.

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.