This deluxe-level mechanical relay features a full suite of diagnostic tools

Whether you are performing an AC repair or optimizing a single-phase motor

For contractors performing boiler gasket replacement

installation directly to drywall may require the use of standard wall anchors (not included) depending on specific site conditions

Capacitors should always be handled with care and discharged properly before installation to ensure technician safety

Weil McLain 511-210-423 Drain Valve This deluxe-level mechanical relay featuresThe Weil McLain 511 210 423 Drain Valve is a heavy duty brass boiler drain valve engineered specifically for hydronic heating systems. Featuring a rugged 3 4" NPT connection and a 1 1 2" shank, this component ensures a secure, leak proof interface with the boiler block or distribution manifold. As an authentic Weil McLain replacement part, it is designed to meet exact OEM tolerances, providing contractors with a reliable solution for system flushing