Burp-Free Funnel, Large Part #0656

FAQs Resources & Docs Compliance & Regs Additional Info. Frequently Asked Questions What kind of threads are used with the funnel? The standard size funnel uses buttress threads and the large funnel uses NPT (National Pipe Thread). Does this mean I don't have to vent through the 3/4" bung now? Yes, that is correct. Because of the built-in vent in the funnel, no further venting is necessary. How many can I get on a pallet? What's the other shipping information I should know? We can ship up to (40) standard size burp-free funnels on a single, standard pallet. We can ship up to (20) large burp-free funnels on a single, standard pallet. Freight class is 250. Is an adapter included to use the burp-free funnel with IBCs? The Ultra-Drum Funnel, Burp-Free Model is designed for a 2″ NPT bung and does not come with any additional adapters. Adapters for IBC or other containers with different sized bungs or thread types will need to be obtained separately. More Info / Downloa