eztoch ph chlorine salt tester for pool, salinity ph meter for saltwater pool, 7 in 1 ph salt free chlorine tester digital orp ppm ec tester for swimming pool, hot tub, spa, aquarium, hydroponic is up for auction in Patio, Lawn & Garden. The current bid is $1.50, 97% below the $44.99 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.