This is a set of six , 4 inch diameter add-on / snap-on pipe / stack cooling fins. They make close contact with your stack / pipe to draw more heat out of the pipe. They increase the area of heat dissipation. Heat is conducted into the radiator loops where the heat is transferred into the air. They are widely used as stovepipe heat reclaimers that reclaim heat from the hot stove pipe and radiate the heat into the room. They will fit 4 inch pipe. (See other listings for more sizes) CUSTOM SIZES AVAILABLE...CONTACT ME) You get one lot of 6 radiators. They are made of 28 gauge steel, 1 ½ inches wide. They attach quickly and easily to your pipe or exhaust stack. No screws or tools needed. The ends lock into each other. It takes about 2 minutes to attach all six radiators. The bands conduct heat from the points of contact on the pipe to the loops in the band where the heat is released. They will last a lifetime. They never need maintenance. They are guaranteed to draw more heat from the pipe. You may put on as many bands as you want to, however keep at least 1 inch between bands. NOTE: The length of pipe in the picture is not part of the sale.

• Fits 4" diameter pipe. (approx 12.5 inch circumference)
• Material: 28 ga. steel, 1 1/2" wide
• Made in the USA
• They will last a lifetime. They never need maintenance.

Fits 4" diameter pipe. (approx 12.5 inch circumference)Detex