Geotech Bladder Pump Bladders — 0.85"

Replacement bladders for the 0.85" Geotech Portable Bladder Pump. The bladder is the only part of the pump that touches the sample, and it is a consumable — most programs fit a fresh one at each well so there is no possibility of carryover. PTFE or polyethylene? PTFE is chemically inert and the choice when the analyte list is sensitive or the method specifies it. Polyethylene is cheap enough to treat as genuinely single-use. For routine monitoring across many wells, the 12-pack is the economical way to buy. Everything compatible with this diameter is in the 0.85" Bladder Pump System collection.