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WATERTIGHT AND NEVER GETTING TOO HOT, THEY ARE SAFE TO USE WITH PVC AND POLY PIPE AS WELL AS COPPER AND STEEL. THE 4" O.D. BY 2" I.D. INSULATING TUBE TRAPS THE WARM AIR, LETS IT RISE UP THE TUBE AND PROTECTS TO 25 BELOW, YET COSTS JUST TWO CENTS A DAY TO OPERATE. BUILT TOUGH FOR A LONG LIFE, THE 12" HEATER WITH 6 FOOT CORD, 3 FOOT TUBE AND TUBE SEAM CLOSURES ARE ALL NEATLY PACKAGED IN A 4 x 4 x 36 STURDY CARDBOARD BOX. PLEASE SPECIFY 115 VOLT OR 230 VOLT WHEN ORDERING. |
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