Mechanical Relay Board for VacuMaid / AstroVac P125, SR42 & MK-X Central Vacuums Charles Its wider span covers more

Its wider span covers more of the floor ahead of the suction inlet

it is an easy way to leave each room smelling fresh

The white finish keeps it discreet in utility rooms

bristles wear flat

it traps fine dust and allergens so they stay out of the exhaust air

Mechanical Relay Board for VacuMaid / AstroVac P125, SR42 & MK-X Central Vacuums Charles Its wider span covers moreThis 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