Adjustable BX outlet for easy installation|Dual precision switches for dependable operation of the low water cut-off and alarm or electric water feeder|Packless bellows|Use with TC-4 on hot water systems|For steam and hot water boilers
McDonnell & Miller Low Water Cut-Off, Heavy Duty Mechanical, Series: 64 Series, 120 VAC, 50 psi, Automatic Reset, NPT, 1 in, 125 VA, 6-1/2 in Height