Bio-Dex Laboratories Aquadex 50 Stain Off (32 Oz.) | ADQ50 Style_Style 2 They come in handy if

They come in handy if you need to increase/decrease pressure on a particular zone

gear plate

2" 4-Port Valve Base

ensuring smooth and balanced valve cycling

Bio-Dex Laboratories Aquadex 50 Stain Off (32 Oz.) | ADQ50 Style_Style 2 They come in handy ifBio Dex Laboratories Aquadex 50 Stain Off (32 Oz.) Aquadex 50 Stain Off Spa Stain Off removes copper iron and metallic stains from plaster pools and black cobalt stains from fiberglass. Stain removal results can be noticed within 48 hours up to 10 days depending on how old or fresh the stains are. The product is stable at higher temperatures so works well in the spa environment. The effectiveness of Aquadex 50 Stain Off wont be compromised by