While this is a specific Rheem-Ruud 47-21777-04 part

and Weather King units as a direct L200-20F limit control

50-Micron Filtration: High-density polypropylene fleece captures fine debris

Built by White-Rodgers (an Emerson brand)

Drainview Products 243850-1/4 Strainer/Ball Valve Combo While this is a specificThe Drainview Products 243850 1 4 Strainer Ball Valve Combo is a heavy duty solution designed to consolidate filtration and isolation into a single, compact footprint. This 1 4" x 1 2" strainer ball valve serves as the direct replacement for Drainview 243850, ensuring seamless HVAC part compatibility during maintenance or new installations. Built for professional grade hydronic system fluid control, it features a robust forged body and integrated mesh