Check the listing for details. 2 Adjustable Concealed Standard Spray Standard and Quick Response V3801 & V3802. Condition: New. Listed at 27.99 USD. You are Buying one Pair of Brand New 2 Adjustable Concealed Standard Spray Standard and Quick Response V3801 & V3802 Product Description:This concealed, designer style sprinkler allows up to1/2"/13 mm adjustment to accommodate concealmentneeds. The “standard” design provides a consistenthemispherical spray pattern. The separate two-piecemounting cup/cover plate allows easy installation andtesting prior to ceiling installation. It also permits removalof suspended ceiling panels without system shutdown.This sprinkler is available in various temperature ratings(see chart on page 3) and finishes to meet many designrequirements. Technical Specifications:Models: V3801, V3802Style: Adjustable concealed, ordinary hazard, lighthazardNominal Orifice Size: 1/2"/13 mmK-Factor: 5.6 Imp./8.1 S.I.1Nominal Thread Size: 1/2"/15 mmMax. Working Pressure: 175 psi/1200 kPaFactory Hydrostatic Test: 100% @ 500 psi/3450 kPaMin. Operating Pressure: 7 psi/48 kPa