From: Edward V. Phillips[SMTP:ed-at-alumni.caltech.edu] Sent: Tuesday, July 15, 1997 11:58 AM To: tesla-at-pupman-dot-com Subject: Re: toroid "Can anyone tell me where I can get flexible aluminum vent pipe in larger size than 4" inches in diameter? " I southern California the Home Depot chain (and probably others, too) has 6" and 8" flexible ducting, for reasonable prices. Ed D