View on LOZ Suggested Retail: $69. VIVOSUN Durable Waterproof Seedling Heat Mat Warm Hydroponic Heating Pad 48'' x 20.75''. The VIVOSUN professional heat mat maintains sweet-spot temperatures around 68-86℉(20-30℃), which is perfect for start seeding and cutting propagation; Made of high-quality PVC material, it is wear-resistant and durable to use. The advanced far-infrared heating technology of this heat pad provides your plant with a warm environment to create optimal conditions for speeding up germination and accelerating the growth rate; The strengthened heating film with double insulation layers ensures this durable mat will not scorch the root and can produce plenty of invigorating dew when being used in combination with a humidity dome.. 7 CALENDAR DAY FULL REFUND GUARANTEE (FROM PRIMARY PICKUP DATE) ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE (FROM PRIMARY PICKUP DATE) IS ALSO AVAILABLE. THE PRIMARY PICKUP DATE IS THE DAY AFTER THE AUCTION ENDS. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.