The Puffco Proxy Bub is the original water filtration bubbler attachment for the Puffco Proxy, adding a full water filtration stage to your concentrate sessions. Simply attach it to your Proxy base and instantly upgrade from a dry pipe to a smooth, water-cooled rig experience — all in a compact, portable form factor. The Bub is the gateway accessory for Proxy owners who want noticeably cooler, cleaner hits without buying a separate rig. Proxy base not included.