Jack's Magic The Vinyl Liner Blue Stuff - 1 qt thermowells 111790 Pleatco Part # PLB50

111790 Pleatco Part # PLB50 Square Feet 50 Unicel Part # C7417

Manufacturer Part # PF2119BS

Fits most filters

Manufacturer Part # 2921923042

making it perfect for smoking

Jack's Magic The Vinyl Liner Blue Stuff - 1 qt thermowells 111790 Pleatco Part # PLB50The Vinyl Liner Blue Stuff is highly effective in all types of vinyl liner pools. The Vinyl Liner Blue Stuff has been developed to meet the specific needs of vinyl liner pools, including those with heaters. The Vinyl Liner Blue Stuff helps prevent metal stains (including copper) and scaling in new vinyl pools. This product also helps to remove metal stains and scale in older vinyl pools. The Vinyl Liner Blue Stuff works particularly well in areas