GLB SuperSonic Chlorine Shock - 1 lb

SKU: GL71442EACH Brand: GLB


This product ships for only $7.99 or spend $99 for Free Shipping!
GLB SuperSonic is a highly effective multipurpose product that sanitizes, clarifies, prevents algae and shock treats your pool. It is convenient, easy to use and won’t over-stabilize your pool water. The fast-acting formula can be used on all pool surfaces and leaves no residue.

Compatible With Chlorine and salt water

Start Up: 9-18 ounces per 10,000 gallons

Maintenance: 9-18 ounces per 10,000 gallons every 7 days or as necessary

Manufacturer GLB
Manufacturer Part # 71442A
Pool Chemical Type Shock | Oxidizer
Product Features
  • 73% cal hypo granular
  • Fast dissolving, multi-purpose formula
  • Sanitizes, clarifies, prevents algae and shock treats pool water
  • Will not cause over-stabilization

RETURNS POLICY - View Complete Return Policy offers a 30 day return policy on eligible items that are new, in original condition unused/unopened and in its original packaging. Items can be returned within 30 days of receipt of shipment in most cases. If you have a return, you must Contact Us to request a Return Merchandise Authorization (RMA) number. Any return received without a RMA number will be refused.

  • Item(s) must be new, in original condition unused/unopened and in its original packaging
  • Return must be made within 30 days of receipt of shipment
  • Original shipping fee is non-refundable
  • Customer is responsible for all return shipping costs
  • All returns are subject to a 15% restocking fee
  • Up to a 50% restocking fee may be applied for items returned that are damaged, missing parts, not in original condition, or have obvious signs of use

Non-Returnable Items:

  • Barbeque rubs and sauces
  • Chemicals
  • Custom orders
  • Fish food
  • Grill / Smoker wood chips, chunks and planks
  • Open box items
  • Scratch and dent items
  • Special orders
  • Used items

SHIPPING POLICY - View Complete Shipping Policy offers FREE STANDARD SHIPPING on all orders over $99 shipped to the 48 contiguous states.

We offer the following shipping options depending on the products being ordered.

Ground Shipping - Estimated Transit Time 2-7 Business Days*
Free Ground Shipping - Estimated Transit Time 2-7 Business Days*
USPS First Class Mail - Estimated Transit Time 5-7 Business Days*
FedEx Next Day Air**
FedEx 2nd Day Air**
Hazardous Materials***

*Transit time does not include pre-order items, back ordered items or items that have Shipping Lead Times that are noted on the product details page.

**Next Day and 2nd Day Air shipments ordered after 1:00PM EST. will ship the following business day. Next Day and 2nd Day Air Shipments placed on the weekend will ship on Monday. Next Day Air orders shipped on Friday will arrive on Monday(excluding holidays). Delivery days for 2nd Day Air and Next Day Air shipments do not include Saturday, Sunday or holidays.

***Certain products are classified as a hazardous material and therefore must ship via hazmat requirements. Hazmat deliveries are only made Monday - Friday and requires an adult signature at time of delivery.

Please contact us before placing your order if you have any questions regarding transit times.

Most orders received by 1:00PM EST Monday - Friday will be shipped within 24-48 hours. Most orders placed after 1:00PM EST on Friday will be shipped on Monday/Tuesday of the following week. Orders placed on a holiday will be shipped on the following business day. Certain items may have extended processing times. Items with extended processing times will be displayed on the product details page. We do our best to keep our inventory updated. In the event that we cannot fulfill your order due to stock shortage, we will notify you by email.

We ship via multiple carriers such as UPS, FedEx and USPS. reserves the right to use the best carrier for the delivery of your order. We ship from multiple shipping points so transit time will vary depending on your order and destination.

Customer Reviews

Based on 34 reviews
Albert S.

Excellent product and excellent price- great company to do busiiness with.

Lisa J.
Fast and. fair price

This product was reasonably priced and came in just a few days. Extremely satisfied!

Great product

I have used this for years in my inground pool. Works great! Good price and super fast shipping.

Great product!

I love this for my pool... I've tried cheaper brands to save money. Not a good idea! (It made my pool cloudy:( )
Yard and Pool shipped quickly also! 👍

Tessa B.
Awesome product

Was exactly what I wanted recommend this item does awesome job

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