Hydrolevel Company develops liquid level technology to meet the changing demands of boiler manufacturers and heating contractors. Safeguard boiler level controls and flow switches.

General purpose liquid flow switch, magnetic activation, 150 PSI Max @ 300 degrees F.

24 VAC. Water feeder. Fully programmable delay before feed and feed settings (1 to 5 gallon). Digital feed counter.

HC-45-1100 Automatic Reset with Burner Circuit Test Button - Residential Code Control. Compact low water cut-off for residential boilers. Interrupts power immediately in low water condition. ...

24VAC. Automatic reset with burner circuit test button. Compact low water cut-offs for residential boiler. Interrupts power immediately in low water condition. Equipped with POWER and LOW WATER ...

120VAC. Automatic reset with burner circuit test button. Compact low water cut-offs for residential boiler. Interrupts power immediately in low water condition. Equipped with POWER and LOW WATER ...

120 VAC. Water feeder. Fully programmable delay before feed and feed settings (1 to 5 gallon). Digital feed counter.

120 VAC. Water feeder. Programmable feeder for commercial boilers. Includes water meter with 3/4" fittings, Y-strainer and flow restrictor.

120 VAC. Water feeder. Programmable feeder for commercial boilers. Includes 3/4" fittings Y-strainer and flow restrictor.

General purpose, heavy-duty water meter with 3/4" adaptors rated from .5gpm to 35gpm.

120VAC. Automatic reset. Interrupts power immediately in low water condition. Automatically resets on normal water level.

120VAC. Automatic reset. Interrupts power immediately in low water condition. Automatically resets on normal water level. Includes shorter EL1214-SV probe suitable for mounting in standard black ...

HC-45-210 EL1150 3/4" NPT, 1 15/16" inside dimension. For 1150 Series control.

Probe. 3/4" NPT, 2 7/8" inside dimension. Standard ceramic.

Probe. 3/4" NPT, 2 1/16" inside dimension. Short ceramic.

Probe. 1/2" NPT, 2 7/8" inside dimension. Standard ceramic.

Probe. 1/2" NPT, 2 1/16" inside dimension. Short ceramic.

EL1220 probe in J-box with metal cover.

EL1214 probe in J-box with metal cover.

Probe. 3/4" NPT, 2 7/8" inside dimension. Standard ceramic. Long nut (1 11/16")

HC-45-227 EL1214-LSV 3/4" NPT, 2 1/16" inside dimension. Short ceramic.

24VAC. Automatic reset. Interrupts power immediately in low water condition. Automatically resets on normal water level.

24VAC. Automatic reset. Interrupts power immediately in low water condition. Automatically resets on normal water level. Includes shorter EL1214-SV probe suitable for mounting in standard black ...

120VAC. Pump controller / low water cut-off combination. Controls boiler feed pump to maintain boiler water level. Provides low water cut-off protection. Includes manifold casting with three ...

120VAC. Pump controller / low water cut-off combination. Controls boiler feed pump to maintain boiler water level. Provides low water cut-off protection. Includes manifold casting with three ...