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ProOne Sight Glass Spigot

ProOne Sight Glass Spigot


The ProOne Sight Glass Spigot allows you to get an accurate water level reading without lifting the upper chamber to see how much water is left in the lower chamber. A quick glance at the Sight Glass Spigot will let you know the water level in your gravity water filter.

The ProOne Sight Glass Spigot works for all ProOne gravity stainless systems (ProOne Big+ and ProOne Traveler+). The glass spigot also fits most ProOne competitors gravity water filter systems including Alexapure, AquaCera, Doulton, and Patriot Pure. Additionally, it works with Berkey® water filter systems, including the Travel Berkey®, the Big Berkey® and Imperial Berkey® water filter.