United Chemical Yellow Treat, 2 lb | YT2-C12 C9494 177007 = current Pentair part

177007 = current Pentair part Sta-Rite Posi-Flo 50TX WC108-56S2X / 177007 WC108-56S2X = legacy Sta-Rite part

or for river rafting

Aladdin: 20503

Will help remove stains and scale in older pools

Designed for easy automation

United Chemical Yellow Treat, 2 lb | YT2-C12 C9494 177007 = current Pentair partSize: 2 lb Bag Yellow Treat makes killing mustard algae fast and easy. Just add 5 ounces per 10,000 gallons, brush, and shock. Then wake up the next day to an algae free pool that still has a chlorine reading. Features and Benefits: See Results Fast: 24 hours or less Leaves a chlorine reading so no follow up shocking needed the next day Contains zero ingredients that can stain