Baquacil Sanitizer & Algistat - Chlorine-Free Pool Sanitizer (1/2 Gallon, 4-Pack)

Stock up and save with this 4-pack of Baquacil Sanitizer & Algistat — the foundation of the Baquacil chlorine-free pool care system. Each half-gallon bottle kills bacteria and prevents algae growth without the harshness of chlorine.

Key Benefits

• Chlorine-free formula — gentle on skin, eyes, and swimwear
• UV-stable — stays effective even in direct sunlight
• Easy dosing — 1/2 gallon per 10,000 gallons of water for 50 ppm sanitizer level
• Step 1 in the Baquacil Pool Care System
• 4-pack value — enough to treat up to 40,000 gallons

How to Use

For startup, add 1/2 gallon per 10,000 gallons of pool water. Test weekly and maintain proper sanitizer levels throughout the season.

Compatible with all Baquacil pool care products. Not for use with chlorine or bromine-based systems.

Shipping: We offer free standard shipping on all orders within the contiguous United States (lower 48). We do not currently ship to Alaska, Hawaii, or Puerto Rico. Any other restrictions will be shown at checkout. We do not currently ship internationally. Orders ship within 1 to 2 business days, and delivery typically takes 4 to 6 business days after shipping, for a total of about 5 to 8 business days from your order date.

Tracking information is emailed once your order ships. We do not currently offer international shipping. See our full Shipping Policy for full details.

Returns: Unused items in their original packaging may be returned within 30 days of delivery. To start a return, request a Return Merchandise Authorization (RMA) by emailing support@nationalpoolsupply.com or calling +1 978-222-0628 with your order number and the reason for the return (include photos if the item is defective, damaged, or incorrect). Once your RMA is approved, ship the item with your RMA number to: DHB Enterprises LLC / National Pool Supply, 30 Log Bridge Rd, Building 300, Unit 301, Middleton, MA 01949. Change-of-mind returns: you pay return shipping, and a 15% restocking fee applies; original shipping costs are not refunded. Defective, damaged, or incorrect items reported within 30 days of delivery are returned at no cost to you with a prepaid label, and no restocking fee applies. See our full Refund and Returns Policy for full details.

Manufacturer Warranty:
This product carries the manufacturer's warranty, where applicable. Warranty terms, coverage, and exclusions are set by the manufacturer. Warranty claims are filed directly with the manufacturer; we do not process warranty claims or offer a separate warranty of our own. If you need the manufacturer's contact details, contact us and we will share them. See our Warranty page for details.