Mechanical Relay Board for VacuMaid / AstroVac P125, SR42 & MK-X Central Vacuums Charles No clouds of dust

No clouds of dust

bristles wear flat

The chrome-plated equivalent is Part #34540C

holding debris securely while keeping the exhaust clean

These bags use the heart-shaped

Mechanical Relay Board for VacuMaid / AstroVac P125, SR42 & MK-X Central Vacuums Charles No clouds of dustThis mechanical relay board (Part #P12595A) is a replacement low voltage control board compatible with VacuMaid and AstroVac central vacuum power units. The relay board energizes the high voltage motor circuit in response to the low voltage start stop signal from your wall inlets and hose handle. It is designed for the P125 power unit and the MK X series. Note that the SR42 unit uses two of these relay boards, so order a pair if you are servicing an