1-¼ in. IPS/ISO Height: 13-3/16 in. (33,5 cm) Pop-up Height: 3 in. (7,6 cm) Construction Housing is made of lightweight, high strength, special corrosion resisting cast aluminum alloy with polyester coating. Cover is die cast aluminum with green epoxy finish Internal Sprinkler Assembly is fabricated brass, stainless steel and cast bronze Strainer is Perforated Stainless Steel Each Sprinkler is Factory Tested and calibrated at its rated intermediate operating range Options Rubber Cover - Green (XR90), molded rubber with center access plug Vandal Resistant Cover Screws (XV90); special tool required for removal