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“SPX4000Z1 NorthStar EcoStar VS Hayward Pump Union / Diffuser O-ring” has been added to your cart. Continue shopping

Remove item	Product	Price	Quantity	Subtotal
×	406303A Applied Biochemists Black Algaetrine 32oz.	$35.97	406303A Applied Biochemists Black Algaetrine 32oz. quantity	$35.97
×	SPX4000Z1 NorthStar EcoStar VS Hayward Pump Union / Diffuser O-ring	$5.49	SPX4000Z1 NorthStar EcoStar VS Hayward Pump Union / Diffuser O-ring quantity	$5.49
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Subtotal	$41.46
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Total	$41.46

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Best Pool Shop
310 S. Rosemead Blvd. Pasadena, CA 91107
Tel. 818-660-6465
Mon.-Sat. 8:00AM-5:00PM
Sun. CLOSED

In store, walk-in prices are usually cheaper than online prices.

☆ ☆ ☆ ☆ ☆
Your Trusted Partner in Swimming Pool Care

300,000+ Successful Orders Online
1,000+ ☆☆☆☆☆ 5-Star Google Reviews
30-Day Easy Returns
Safe Chekout
Over 65,000 Items in Stock
15+ Years of Industry Experience
Premium Quality Pool Equipment & Supplies
Proudly Serving the Los Angeles Area

☆ ☆ ☆ ☆ ☆

Our track record speaks for itself. With over 300,000 successful online orders, Best Pool Shop has become a trusted name for pool owners across the nation. Whether you're purchasing a single replacement part or equipping an entire pool, you can count on our reliability and service.

Customer satisfaction is at the heart of everything we do. Our dedication to quality and exceptional service has earned us over 1,000 5-star reviews on Google. These glowing testimonials reflect the trust and confidence our customers place in us.

We understand that sometimes things don't work out as planned. That's why we offer a 30-day easy return policy. Shop with peace of mind knowing you can easily return your purchase if necessary.

Your security is our priority. Our checkout process is designed with state-of-the-art encryption and fraud prevention measures, ensuring your personal and payment information stays protected every step of the way.

With a massive inventory of over 65,000 items in stock, we offer one of the most comprehensive selections of pool equipment and supplies in the industry. From essential maintenance tools to advanced automation systems, we have everything you need in stock and ready to ship.

For over 15 years, we've been serving pool owners with expert advice and top-quality products. Our team's deep industry knowledge ensures that you get the best solutions for your pool every time.

At Best Pool Shop, quality is our standard. We only offer trusted brands and premium equipment that meet our strict quality guidelines, ensuring that your pool operates efficiently and lasts for years to come.

As a local business, we're committed to supporting the Los Angeles community. Whether you shop online or visit us in person, we deliver personalized service and expert guidance to help you maintain a safe, clean, and enjoyable pool.

WARNING: Product(s) shown and sold in the website and in store can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov

USD is the purchase currency for the website. Payments made through the website are secure.