these models are technically identical in form

Featuring a 16-inch outside circumference and a standard 3L cross-section

it provides superior flow regulation for fan coils and baseboard applications

Multi-Poise Mounting: The poppet style design allows for flexible mounting orientations without sacrificing performance

and ceiling tiles for maximum site flexibility

Resideo PS1201B25 Replacement Power Supply 320788-703 these models are technically identicalThe Resideo PS1201B25 Replacement Power Supply is the standard 120 Vac power box assembly engineered for Honeywell Home F50 and F300 Electronic Air Cleaners. Designed specifically for 16x25 and 20x25 inch models, this Series Two power box features a selectable ionizer current output via the P5 shorting bar, allowing technicians to calibrate performance based on collector cell surface area. It also includes the J8 jumper for optional ozone reduction,