Orifice for expansion valve, ORF, R407A; R134a/R513A; R23; R455A; R407C; R236fa; R452A; R454C; R404A/R507A; R1234yf; R448A; R22/R407C; R449A (068-2006)
The GRSR is a spun aluminum air relief roof ventilator for natural gravity or positive pressure systems. This model can mount either to a roof curb or with a flashing flange (GRSF) for quick and easy installations.
230 to 18,400 cfm
Up to 0.4 in. wg.
This product is no longer available.