Check the listing for details. CHLORINE / BROMINE TEST KIT SOLUTION, REAGENT #1 - 1OZ (POOLSTYLE - 22391). Condition: New. Listed at 8.50 USD. Chlorine / Bromine Test Kit Solution, Reagent #1 - 1oz (Poolstyle - 22391) FREE SHIPPING! MANUFACTURER:Poolstyle / Poolmaster PART NUMBER: 22391 Same formula and manufacturer as Poolmaster #1 reagent # 23261 DESCRIPTION: Chlorine and bromine test kit solution, reagent #1 for OTO test kits. Replaces Poolmaster reagent. See our other listings for more! Need more? Check our 5-pack listings!: https://www.ebay.com/itm/256025436267 - #1 x 5https://www.ebay.com/itm/256025412314 - #1 through #5 Full Set! Poolstyle reagents are manufactured and rebranded by Poolmaster and can be used interchangeably between Poolstyle and Poolmaster test kits. Made in Sacramento, CA just like us! CONDITION:New STORE POLICIES:We can ship outside the contiguous 48 states but will require contact prior to purchasing (ADDITIONAL FEES WILL APPLY). Ask about BULK DISCOUNTS.Available Mon-Fri 9-5 (PST)