Ph(x)
Ph(x) is a brand of water pipes. Most famous is the trinity which is an awesome smoking apparatus that delivers a smooth clean hit thru 3 different stages of water.
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PHX
A Brand of "Bongs" Waterpipes, that use a glass on glass seal instead of O-rings and groumets. They use Glass screens as well called glass gauzes, instead of metal screens like traditional pipes. The idea is that glass is completely inert and will not taint the taste as metals and rubbers will. + the seal from a glass on glass fit is unmatched by rubber sealing bongs. These bongs are most always 3 piece bongs with standard bowl fit diameters of 14.4 mm or 18.8 mm. G-spot and RooR also make the same bongs