Featuring a robust 1 1/2" NPT connection

which helps prevent water hammer in the system

the E2102800 features a 100% shut-off safety lockout to prevent gas buildup in the event of a flame failure or sensing error

and ceiling tiles for maximum site flexibility

and parallel sheave alignment during installation

Resideo PS1201B25 Replacement Power Supply 320788-703 Featuring a robust 1 1/2"The 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,