While designed as a Lennox 33H36 OEM part

Quick Installation: Includes essential mounting hardware

resisting contact pitting and calibration drift

the PFA soft seat is designed for easy field replacement

often leading to low-pressure safety trips

Siemens Building Technology 243-00211 Valve Assembly 323613-751 While designed as a LennoxThe Siemens 243 00211 Valve Assembly is a high performance 2 way normally open solution designed for hydronic system control. Featuring a 1 2 inch NPT threaded connection and a reliable 2. 5 Cv linear flow rate, this assembly is engineered for precision in hot or chilled water applications. The unit utilizes a durable brass body with brass trim and a stainless steel stem, ensuring longevity in demanding commercial and residential environments. Powered