mizudo Direct Vent Set of 3" OD Elbow and 3" OD x 19.7" Length Chimney Rain Cap, Perfect for Water Heater Round Tube Air Ventilation and Vent Pipe Vent Kit is up for auction in Tools & Home Improvement. The current bid is $2.50, 97% below the $79.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.