We're selling a rare Allison Labs model 2BR variable passive filter with 2 stage Hi and Lo filter sets.  This unit has been tested and it is working.  Online sources say this unit is similar to a Pultec HLF with hi and lo sections and many different settings.  There is wear from use/storage like scratches, scuffs and dust.  The top handle is missing.   Sold AS IS, please see high-res photos for more details. 

Dimensions: 19" x 7" x 7"

Allison Laboratories 
2BR Variable Filter 
Serial #: 1990R

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All items are Sold AS IS (unless otherwise stated),  Worldwide Shipping (GSP 60+ Countries),  Payment due 4 days after auctions end, Ships 1-2 days after payment is received... Thank you & Happy Bidding.