● Case size: 4" (100mm), 6" (150mm)</br> ● Case materials: plastic and stainless steel</br> ● Tube and socket: brass, 304 stainless steel and 316 stainless steel</br> ● Element: brass, 304 stainless steel and 316 stainless steel</br> ● Connection thread: NPT, BSP, BSPT or other thread</br> ● Connection: bottom connection, back connection

● 2.5" (68mm) dial has a blue and red colored case for easy identification</br> ● Dial scale (psi / °F)</br> ● Flutterless movement on the 2.5" (68mm)</br> ● Chlorofulorocarbon (CFC) temperature scales, refrigerant R-12, R-22, R-502, R-134A, R-410A</br> ● ASME B40.100 and EN837-1 compliant

● Case: stainless steel</br> ● Bezel ring: crimped ring (bayonet type), stainless steel</br> ● Dial: 2.5" (63mm), 4" (100mm), aluminium, white, black lettering</br> ● Pointer: aluminium, black</br> ● Diaphragm seal size: DN 0.75" (20mm), DN 1.5" (40mm), DN 2" (50mm), DN 2.5" (63mm)</br> ● Window: laminated safety glass</br> ● Liquid filled or dry</br> ● ASME B40.100 and EN837-1 compliant

● Dial: white aluminium dials with black and red markings</br> ● Silicone dampened movement for resisting the vibration</br> ● Case style: bayonet or crimped, stainless steel 304 </br> ● Socket: brass, lead-free brass or stainless steel 304</br> ● Dry and without liquid-filled</br> ● Restrictor in connection</br> ● ASME B40.100 and EN837-1 compliant