aumzong 178578 filter tank bottom assembly replacement for pentair swimming pool clean and clear plus and quad de ccp240 ccp320 ccp420 ccp520 pool filter is up for auction in Patio, Lawn & Garden. The current bid is $1.00, 100% below the $423.26 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.