Hydrolevel 400R Low Water Cut-Off THPU32HP7Y Material Compliance: Lead Free construction

Material Compliance: Lead Free construction meets all current potable water regulations for RPZ backflow preventers

Compatible with BTAS-4 suction line filter shells for seamless field replacement

Engineered for high stability and low drift

System Protection: Built-in 5-minute anti-short cycle delay prevents premature compressor wear

Precision Balance: The aluminum 3-blade design reduces HVAC system noise and mechanical vibration

Hydrolevel 400R Low Water Cut-Off THPU32HP7Y Material Compliance: Lead Free constructionThe Hydrolevel 400R (Part Number 45 402) is a professional grade 24VAC low water cut off designed specifically for steam boiler applications where a remote mounting configuration is required. As a primary safety control, the 400R utilizes a non cycling design, ensuring the burner circuit remains interrupted until a safe water level is restored. This model includes the EL1214 R sensing probe and a dedicated junction box, providing the flexibility