Pro-Grow (PM-9A) Propagation Mat 22in. X 60in. holds 5 flats

Heavy-duty professional grade rubber heat mat.  Place your flats directly on this energy efficient, heavy red rubber mat to get even bottom heat for starting seeds and cuttings.

Manufacturer Name: Pro-Grow Supply



Requires a heavy-duty Pro-Grow Control Thermostat (any model) sold separately.

The model PM-9A heavy-duty heat mat is designed to withstand the harsh greenhouse environment. Place your flats directly on this energy efficient, heavy rubber mat to get even bottom heat for starting seeds and cuttings. This mat is designed to be used with a Pro-Grow Control Thermostat for controlled heating (see our heavy-duty steel encased “Control Thermostats”  available to maintain from 40 to 100 degrees farenheit- sold separately – all Pro-Grow Control Thermostats have top and bottom screw mounts for convenient optional mounting). Mat warranty is void if not used with a Pro-Grow Control Thermostat.

Rubber – excellent material choice/texture; (not rubberized pvc plastic which is flimsy and can have a strong odor)

Size:  22″x 60″ commercial grade propagation mat holds up to 5 standard #1020 (10″x20″) flats (flats not included)


Convenient 6 Foot Cord

Est. shipping wt. 13 LBS

Manufactured in U.S.A. – Built-To-Last

Instructions for use included

These professional grade propagation mats are specially designed by Pro-Grow Supply’s engineering team for excellent thermal heat transfer, even heating and germination, and durability year-after-year. Mats are made from special heavy duty, rugged long lasting rubber that will outlast flimsy plastic phthalate designs. Our special material, which is truly heavy-duty, is made only in the red color. Grower’s tell us the durable material is great to work with. The material stays flat while in use, yet conveniently rolls up for storage.

NOTES: Monitor soil moisture so seeds do not dry out or are not saturated with water. Overwatering can lead to damping off.

Suggestion on growing medium: Start seeds in a specific seed-starting mixture. We suggest using a sterilized growing medium for seed starting mixes as well as potting mixes. Click here to see Pro-Grow’s line of heavy-duty Soil Sterilizers.

Enjoy increased production year-after-year with Pro-GrowTM, a trusted brand in manufacturing heavy-duty horticulture products in the U.S.A. The “real” commercial grade heat mat.

Additional information

Weight 13 lbs
Dimensions 24 × 6 × 6 in