Always verify the part number in your specific unit's manual

Key Benefits for Contractors Enhanced Safety: Internal stainless steel ball checks provide automatic shut-off to prevent hazardous spills during glass failure

The high-modulation "EH" configuration offers an expanded modulation span compared to standard models

Common Questions Is the 4074EHG compatible with older FC37 series cells

Corrosion Resistance: Fabricated from heavy-gauge aluminized steel to resist oxidation and thermal cycling fatigue

Velocity Boiler Works (Crown) 270001 Gasket 323080-701 Always verify the part numberThe Velocity Boiler Works 270001 Gasket is a critical circular sealing component engineered specifically for TWZ and CWI series boilers. As a veteran grade OEM replacement part, this coil gasket is manufactured from high grade elastomers designed to maintain its structural integrity under the rigorous thermal cycling typical of hydronic heating systems. Whether you are servicing a Crown TWB065 or a TWB150, ensuring a precision fit at the coil