Relays & Misc Controls
Greystone LY General Purpose Relays
LY series general purpose relays. 10A switching capacity.
From $27.20
Neptronic CCC Relay Interface Boards
Interface boards ideal for fan coil applications where 240/120 Vac equipment must be controlled by a 24Vac thermostat controller.
From $50.00
Greystone PS Regulated DC Power Supplies
Regulated DC Power Supplies. 24 VAC input/DC outputs.
From $68.60
Greystone Miscellaneous Equipment
Damper End Switches, Loop Powered Indicator and WD Water Detector.

why buy from us?
We're engineers passionate about home ventilation and serious about customer service – so you can count on us for carefully-selected equipment and expert advice to ensure your project is a success from specification to installation.
Your call is answered by qualified people who will gladly discuss your project in detail, advise you professionally and never sell you inappropriate products.