This tee is primarily used to adapt or expand refrigeration manifold ports

back out the adjustment screw

technicians can quickly verify flow rates during field installation or maintenance

it is commonly utilized in Reznor unit heaters

White Rodgers F29-0143 Clear Plastic Guard This tee is primarily usedSecure your climate control settings with the White Rodgers F29 0143 Clear Plastic Guard, a heavy duty solution designed to prevent unauthorized tampering in commercial and residential HVAC applications. This universal thermostat guard serves as the professional grade direct replacement for UG 2A and UG 2C models. Built from high impact, UV stabilized plastic, the F29 0143 features a transparent housing that ensures the display remains fully visible