More on degassing (no, NOT moron degassing!)

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What do you think about this model?



Invacare Aspirator
Model No. IRC115
115V, 60HZ, 2.5A
New suction canister assembly included!
Item may be out of box.
Item was tested and found to power on and function properly before listing and shipment.
Item is used and may have been pre-owned by facility, or individual.
Item may have writting, visible markings, or show visible wear.
Guage, adjustment knob, on/off switch, power cord.

that unit looks pretty good. $100 is a little steep for it used however. it seems to retail for around $250.