Stain Drop 5 lb No3 Powder - Pool Water Treatment for Preventing Stains, White/Blue wall fitting O-523KIT-9 Hayward PSV Valve Key

O-523KIT-9 Hayward PSV Valve Key & Cover PSXVZ2A

Drain Plug Adapter

Brand name: Waterway Plastics

Measures 2-1/4-inch length by 6-3/4-inch height by 2-1/4-inch width

Compatible with Polaris 3900

Stain Drop 5 lb No3 Powder - Pool Water Treatment for Preventing Stains, White/Blue wall fitting O-523KIT-9 Hayward PSV Valve KeyStain Drop's No3 pool water treatment is a 5 pound powder formula designed to prevent stains and remove stubborn copper stains under the water's surface. This product is a trade secret chemical composition, specifically categorized as a Trouble Shooter. The powder form is easy to use, just brush it undissolved on the pool floor, ensuring it does not remain in contact with concrete, stone, or other pool decking materials to avoid etching. The packaging