Approvals       K-Factor K=5.6   Thread Size 1/2" NPT   Maximum Working Pressure 175psi (12.1 bar)   Temperature Ratings 162°F/72°C   205°F/96°C   286°F/141°C   Overall Length 2-37/64" (65.4mm)   Vertical Adjustment 1/2 inch (12.7mm) with D1 Recessed Escutcheon* or 3/4 inch (19.1mm) with D2 Recessed Escutcheon (approved by UL only). *Due to FM Approval Standard 3.2.13 by Class Number 2000, use in combination with a sprinkler head rated higher than 255°F is not approved by FM.     Standard Finish Brass, White, Black, Chrome