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All connections are air-tight and the small tank side include a high quality brass/viton tank seal washer for repeated use. Drastically reduce your nitrous oxide (N2O) cost for E tanks of N2O. Buy your Nitrous Oxide in large H or M tanks and fill your small E or D tanks directly from the large tank.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.