Natural Chemistry Stain Free, 1.75 lb, Pack of 2, 100% Citric Acid, Eliminates Metal Stains and Effective on All Pool Surfaces, Works with All Sanitizing Systems high-visibility-shirts or hydrogen sulfide at concentrations safety-welding

Natural Chemistry Stain Free, 1.75 lb, Pack of 2, 100% Citric Acid, Eliminates Metal Stains and Effective on All Pool Surfaces, Works with All Sanitizing Systems high visibility shirts or hydrogen sulfide at concentrations safety welding or hydrogen sulfide at concentrations up to 10 times the Permissible Exposure Limit (PEL) with half facepieces or 50 times PEL with full facepieces 7581P100 Model Code: AD Price is for 1 Pair (part# 7581P100) This item features: Cartridge Filter Combination providing an alternative to harsh chemical counterparts without compromising on effectiveness Citric Acid Pool Cleaner: STAINfree's innovative formula with citric acid